Evidence for X(3872) in PbPb collisions and studies of its prompt production at \sqrt{s_\mathrm{NN}}= 5.02 TeV
EEUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH (CERN)
CERN-EP-2020-2192021/02/26
CMS-HIN-19-005
Evidence for X(3872) in PbPb collisions and studies of itsprompt production at √ s NN = The CMS Collaboration * Abstract
The first evidence for X ( ) production in relativistic heavy ion collisions is re-ported. The X ( ) production is studied in lead-lead (PbPb) collisions at acenter-of-mass energy of √ s NN = ( ) → J/ ψ π + π − → µ + µ − π + π − . The data were recorded with the CMS de-tector in 2018 and correspond to an integrated luminosity of 1.7 nb − . The mea-surement is performed in the rapidity and transverse momentum ranges | y | < < p T <
50 GeV/ c . The significance of the inclusive X ( ) signal is4.2 standard deviations. The prompt X ( ) to ψ ( ) yield ratio is found to be ρ PbPb = ± ± ( ) production mechanism, and of the nature of this exotic state. Submitted to Physical Review Letters © 2021 CERN for the benefit of the CMS Collaboration. CC-BY-4.0 license * See Appendix A for the list of collaboration members a r X i v : . [ h e p - e x ] F e b The X ( ) , also known as χ c1 ( ) , is an exotic particle that was first observed by the BelleCollaboration [1], and then confirmed and studied by other experiments at electron-positron [2,3] and hadron colliders [4–8]. The quantum numbers of the X ( ) have been determined tobe J PC = ++ by the CDF [9] and LHCb [10] Collaborations. However, the nature of thisparticle is still not fully understood and interpretations in terms of conventional charmonium(a bound state of charm-anticharm quarks), D ∗ ( ) D molecules [11], tetraquark states [12],and their admixture [13] have been proposed. The production and survival of the X ( ) ina quark-gluon plasma (QGP), a deconfined state of quarks and gluons [14, 15], is expected todepend upon the X ( ) ’s internal structure [16, 17]. Thus, the recent large data set of lead-lead (PbPb) collisions at a center-of-mass energy of √ s NN = ( ) particle. Coalescence mechanisms could enhancethe X ( ) production yield [16, 19]. These mechanisms can be modeled via the overlap ofthe density matrix of the constituents in an emission source with the Wigner function of theproduced particle [21]. Therefore, the enhancement of the X ( ) production in the QGPwould depend on the spatial configuration of the exotic state. Moreover, a longer distancebetween the quarks and antiquarks that constitute the state could also lead to a higher X ( ) dissociation rate, similar to that from the mechanism of quarkonium suppression in heavy ioncollisions [22]. Therefore, the study of the X ( ) state in the QGP may be used as a tool todistinguish a compact tetraquark configuration with a radius ∼ ( ) → ψ ( ) γ in proton-proton (pp) collisionsreported by LHCb Collaboration [24], which does not support a pure D ∗ ( ) D molecularinterpretation. In addition, measurements of prompt X ( ) production could provide aninteresting test of the statistical hadronization model, which assumes that the produced matteris in thermodynamic equilibrium [25].In this Letter, the first evidence for X ( ) production in PbPb collisions at √ s NN = − . The X ( ) candidates are reconstructed through the decay chain X ( ) → J/ ψ π + π − → µ + µ − π + π − .At the LHC energies, the inclusive X ( ) yields in pp and PbPb collisions contain a signifi-cant nonprompt contribution coming from b hadron decays [8]. The nonprompt X ( ) com-ponent is related to the medium-modified beauty hadron production in heavy ion collisions,which is out of the scope of this paper. Here, we focus on the prompt component, from charmquark fragmentation, for which the ratio ρ i ( i is pp or PbPb) between the corrected yields ofX ( ) and ψ ( ) mesons (where the ψ ( ) is reconstructed with the same final-state particlesin order to reduce systematic uncertainties) is presented: ρ i = N X ( ) → J/ ψ ππ i N ψ ( ) → J/ ψ ππ i . (1)The ratios in pp and PbPb collisions are connected to the nuclear modification factors R X ( ) AA and R ψ ( ) AA (the meson yield ratio in nucleus-nucleus and pp interactions normalized by thenumber of inelastic nucleon-nucleon collisions) via the following relation: ρ PbPb = ρ pp R X ( ) AA R ψ ( ) AA . (2) The central feature of the CMS detector is a superconducting solenoid, which provides a mag-netic field of 3.8 T. Within the solenoid volume there are a silicon pixel and strip tracker thatmeasures the trajectories of the charged particles in the pseudorapidity range | η | < < p T <
10 GeV/ c and | η | < p T and 25–90 (45–150) µ m in the transverse (longitudinal) impactparameter [26]. Muons are measured in the range | η | < p T resolution for muons with 20 < p T <
100 GeV/ c of 1.3–2.0% in the barrel ( | η | < < | η | < < | η | < < m µµ < c . For the offline anal-ysis, events have to pass a set of selection criteria designed to reject events from backgroundprocesses (beam-gas collisions, beam scraping events and electromagnetic interactions) as de-scribed in Ref. [32]. Events are required to have at least one reconstructed primary interactionvertex formed by two or more tracks, with a distance from the center of the nominal interactionpoint of less than 15 cm along the beam axis. The shapes of the clusters in the pixel detectorhave to be compatible with those expected from particles produced by a PbPb collision [33].In order to select hadronic collisions, the PbPb events are also required to have at least twotowers (i.e., a geometrically defined group of calorimeter cells) in each of the HF detectors withtotal energy deposits of more than 4 GeV per tower. This analysis is restricted to events withincentrality 0–90%, for which the hadronic event selection is fully efficient.Dedicated PbPb X ( ) and ψ ( ) Monte Carlo (MC) simulated samples were generated in or-der to estimate the acceptance and selection efficiencies, to study the background components,and to evaluate systematic uncertainties. The
PYTHIA ( ) and ψ ( ) signals at √ s NN = ( ) cannot be gen-erated by PYTHIA , the χ c1 ( ) particle is used, with a modified mass of 3.8716 GeV/ c [36].The χ c1 ( ) has the quantum numbers J PC = ++ , identical to those of the X ( ) . The EVTGEN ( ) and ψ ( ) to decay into J/ ψ π + π − (assuming the ρ resonance dominates the pion pair spectrum [7, 8]), followed by the J/ ψ me-son decaying into two muons. Final-state radiation was generated using PHOTOS χ c1 ( ) → J/ ψ π + π − decay is generated with EVTGEN . The samples with prompt (fragment- ing in charm quarks) and nonprompt (originating from b hadron decays) ψ ( ) /X ( ) pro-duction are generated separately. Each PYTHIA event is embedded in a PbPb collision eventgenerated with
HYDJET p T spectrum and particle multiplicity.The X ( ) signal is extracted in the following steps. Each muon candidate must be matchedto a triggered muon and have p µ T > c in the interval | η µ | < p µ T > ( −− | η µ | ) GeV/ c in the interval 1.2 < | η µ | < p µ T > c in the forward region2.1 < | η µ | < ±
150 MeV/ c of the world-average J/ ψ meson mass [36] are selected to reconstruct a J/ ψ candidate. Theopposite-sign muon pairs are fitted with a common vertex constraint and are kept if the χ probability of the fit is greater than 1%, thus reducing the background from charm and beautyhadron semileptonic decays. The X ( ) and ψ ( ) candidates are built by combining the J/ ψ candidates with two additional tracks, which have p T > c , | η | < ψ π + π − system is performed, requiring that the four tracks originate from a common vertex and forc-ing the mass of the dimuon pair to be equal to the nominal J/ ψ mass [36]. The selection isfurther optimized, using a boosted decision tree (BDT) algorithm [40], in order to maximizethe statistical significance of X ( ) . The X ( ) decay vertex probability, the radial distancebetween the pion and the J/ ψ candidate momentum vectors ( √ ( ∆ η ) + ( ∆ φ ) , where φ is theazimuthal angle), and the p T of each pion are used in the BDT algorithm to distinguish signaland combinatorial background formed by random combinations of tracks. The X ( ) signalsamples are taken from simulation, while the background samples for the multivariate trainingare taken from data sidebands of the X ( ) meson invariant mass. The BDT selection deter-mined in this way is applied to entries in the whole invariant mass range from 3.62 to 4 GeV/ c in data.The raw inclusive yields of X ( ) and ψ ( ) are extracted by an extended unbinned maximum-likelihood fit. A double-Gaussian function with a common mean but independent widths isused to model the signal component for each of the X ( ) and ψ ( ) peaks. This was pre-ferred to a single-Gaussian or a Breit–Wigner function since it described better (i.e., superior χ of the fit) the signal shape in MC simulations. For describing the combinatorial background,mostly produced by the random combination of a J/ ψ candidate with tracks that are not comingfrom X ( ) or ψ ( ) decay, a 4th-order polynomial is used, which gives the best fit in termsof χ per degrees of freedom and stability during all studies. For the signal, only the magni-tude of the two peaks is left free in the fit, the rest (the mean and widths of the two Gaussianfunctions, as well as their relative contribution to the signal yield in either X ( ) or ψ ( ) peaks) are set to the values derived from simulation. The five parameters of the combinatorialbackground are all allowed to float. The invariant mass range considered for the fit is 3.62 to4 GeV/ c . The invariant mass fits for both the inclusive and nonprompt samples, with BDTselection optimized for X ( ) , are shown in Fig. 1. The significance of the inclusive X ( ) signal against background-only hypothesis is 4.2 standard deviations. This significance is cal-culated as the square root of the logarithm of the profile likelihood ratio where the signal iszero. It considers all the systematic uncertainties related to modeling the signal component ofthe X ( ) peak, as detailed below.The contribution from b hadron decays is subtracted from the inclusive result using the“pseudo-proper” decay length l xy , defined as the distance in the transverse plane, L xy , be-tween the vertex formed by the 4-tracks and the closest reconstructed primary vertex in the z direction (along the beam axis), corrected by the transverse Lorentz boost of the candidate: l xy = L xy m J/ ψππ c / | (cid:126) p T | . The prompt-component fraction ( f prompt ) is estimated using a cutoff- ) (GeV/c ppmm m ) E n t r i e s / ( M e V / c - - - P u ll P u ll < 50 GeV/c T
15 < p |y| < 1.6Cent. 0-90%(2S) y X(3872)
CMS (PbPb 5.02 TeV) -1 Inclusive ) (GeV/c ppmm m ) E n t r i e s / ( M e V / c datatotal fitbackground - - - P u ll P u ll > 0.1 mm) xy b-enriched (l Figure 1: Invariant mass distribution of m µµππ in PbPb collisions, for the inclusive (upper) andb-enriched (bottom) samples. The vertical lines represent statistical uncertainties in the data.The results of the unbinned maximum-likelihood fits for the signal + background and back-ground alone are also shown by the solid and dashed lines, respectively. The pull distributionis represented by the shaded bars.based method in the following way. Since the l xy of the prompt component was found in MCstudies to be smaller than 0.1 mm, the prompt fraction, f prompt , can be derived from: i) the rawinclusive yield, N incl , obtained from the fit to the invariant mass distributions of all candidates,shown in Fig. 1, and ii) N b-enr , the “b-enriched” yield, obtained from a fit to the invariant massdistribution only containing candidates that passed the selection l xy > N b-enr has to be corrected to account for nonprompt candidates, with l xy < f b-enrnonprompt = N nonprompt ( l xy > ) / N nonprompt . Thecorrection was obtained from simulation. The raw prompt fraction is then calculated as: f prompt = − N b-enr / f b-enrnonprompt N incl , (3)separately for X ( ) and ψ ( ) states. The corrected yield of the prompt component can thenbe derived as: N i → J/ ψππ = N i raw f i prompt / ( α (cid:101) reco (cid:101) sel ) i , (4)where i is X ( ) or ψ ( ) , α is the acceptance, (cid:101) reco is the candidate reconstruction efficiencyand (cid:101) sel is the candidate selection efficiency. Since the two states are reconstructed in the samedecay channel and are relatively close in mass, their corresponding α (cid:101) reco values are similar.The choice of the BDT optimization criteria results in (cid:101) sel being higher for the X ( ) than forthe ψ ( ) .The measurement of ρ PbPb is affected by several sources of systematic uncertainty, arising fromthe candidate selection, invariant mass fit, and efficiency corrections. To estimate the systematicuncertainty associated with the BDT selection, the BDT cutoff values are varied within therange that allows a robust invariant mass fit procedure, and the maximum difference of the final R value from the nominal result (40%) is quoted as the systematic uncertainty. The relativelylarge R uncertainty associated with BDT cutoff value is the convolution of two causes: theBDT variables distribution differences in data and MC samples for the X ( ) meson, and thestatistical limitation of the signal in data. The uncertainty in the invariant mass fit (8.0%) is calculated by adding in quadrature the max-imum deviations from the nominal result to that found using two alternative fitting functionsfor both signal and background. For the signal, one variation consists of using a triple-Gaussianfunction, while for the other the signal width of the nominal fit is allowed to float to account forthe resolution difference between data and MC. Other choices for the signal shape (e.g., one-Gaussian function) were not considered because of their poor-quality fits. For the background,the fit function is changed once to a third-order polynomial (as an exponential function orlower-order polynomials could not describe the data), and the fit range is also changed from3.62–4 GeV/ c to 3.62–3.9 GeV/ c to exclude the right-hand shoulder.The efficiency corrections obtained from simulation are sensitive to how well the p T spectrumof the X ( ) and ψ ( ) candidates is modeled. The uncertainty related to the simulated p T shape is evaluated by comparing the reconstruction and selection efficiencies calculatedusing the default PYTHIA
MC sample, with another MC sample in which the p T distributionsof X ( ) and ψ ( ) are tuned to reproduce the extracted X ( ) and ψ ( ) p T and y spectraobtained in data, by performing mass fits in bins of X ( ) and ψ ( ) p T and y . The p T and y spectra of the alternative MC samples are allowed to vary within the statistical uncertaintiesin data. The mean of the differences between efficiencies from the alternative MC samples andthe default PYTHIA
MC due to the variation of p T and y spectra, which is 13%, is quoted as thesystematic uncertainty.The uncertainties in the trigger efficiency, in the muon reconstruction and identification areevaluated using single muons from J/ ψ meson decays in both simulated and collision data,with the tag-and-probe method [27, 41]. This combined uncertainty is found to be negligible,below 1%. Scale factors, calculated as the ratio of data to simulated efficiencies as a function of p µ T and η µ , are applied to each dimuon pair on a muon-by-muon basis. The uncertainties of thescaling factors from tag-and-probe studies are quoted as systematic uncertainties.To estimate the uncertainty in the prompt fraction arising from potential differences betweenthe resolution in data and simulation, a template fit of the l xy distribution in data is performedusing prompt and nonprompt l xy templates from simulation. Data are binned in l xy , and aninvariant mass fit is performed to extract the inclusive yield in each l xy bin. This background-subtracted l xy distribution is then fitted using a two component fit, which includes the promptand nonprompt l xy templates from simulation. The widths of the simulated DCA distributionsare varied by a floating scale factor, and the best simulated smearing scale factor to match datais determined by minimizing the χ of the two-component fit. The difference between the ratioof the prompt fractions of X ( ) to ψ ( ) using the template fit method and the nominalresult (8.1%) is quoted as a systematic uncertainty.When calculating the uncertainties in the ratio of the acceptance-corrected yields of promptX ( ) production over prompt ψ ( ) production, the uncertainties of X ( ) and ψ ( ) yields are assumed to be independent except for the systematic uncertainties from muon re-construction, efficiencies, and prompt fractions.The ratio ρ PbPb is shown in Fig. 2, together with ρ pp measured as a function of p T . The pp datawere measured at √ s = | y | < | y | < ρ pp does notdepend significantly on collision energy or rapidity. In pp collisions at √ s = < p T <
22 GeV/ c , the ρ pp measured by the ATLAS Collaboration is0.106 ± ± ρ PbPb measured in this Letter, ρ PbPb = ± ± In the interval 15 < p T <
20 GeV/ c , the yield of the prompt ψ ( ) in PbPb collisions was re-ported to be significantly suppressed with respect to pp collisions, R ψ ( ) AA = ± ± R X ( ) AA central value larger than 1 (i.e., en-hancement of the prompt X ( ) yield in PbPb compared to pp collisions). However, the un-certainties are such that R X ( ) AA is compatible with 1 within ∼ R ψ ( ) AA within ∼ ( ) yield has either no suppression with respect to pp collisions, or as much suppressionas the ψ ( ) state. The much larger data sample expected in Run 3 at the LHC will answerwhether R X ( ) AA is different from R ψ ( ) AA and significantly above unity. It may answer whetherthe ψ ( ) meson production (a bound state of a c and c quarks, with r ∼ ( ) state (that could bemade of c, c, u, and u quarks, with a radius of r ∼ r > ( ) prompt state production is different in PbPb collisions compared to ppcollisions. The question whether X ( ) is a tetraquark or a molecule cannot yet be answered,because of the statistical limitation of the data, and the disagreement among models. For exam-ple, while the AMPT transport model [16] predicts R moleculeAA >> R tetraquarkAA with R moleculeAA > R moleculeAA ∼ R tetraquarkAA /2 (albeit, considering only theX ( ) from regeneration processes).
10 20 30 40 50 60 70 (GeV/c) T p p p y J / fi ( S ) y N p p y J / fi X ( ) N = pp , P b P b r (7 TeV) pp |y| < 1.2 (CMS) (8 TeV) pp |y| < 0.75 (ATLAS) (5.02 TeV) PbPb |y| < 1.6, 0-90%
CMS
Prompt (PbPb 5.02 TeV) -1 Figure 2: The yield ratio ρ PbPb of prompt X ( ) over ψ ( S ) production in PbPb collisions at √ s NN = ρ pp of prompt X ( ) over ψ ( S ) production in pp collisions at √ s = √ s = ( ) production in heavy ion collisions is presented usinglead-lead collisions at a center-of-mass energy of √ s NN = ( ) state is reconstructed using the decay chain X ( ) → J/ ψ π + π − → µ + µ − π + π − . The measurement is performed for transverse momentum valuesof the X ( ) of 15 < p T <
50 GeV/ c and rapidity | y | < ( ) signal is 4.2 standard deviations. The ratio ρ PbPb between the prompt X ( ) and ψ ( ) yields times their branching fractions into J/ ψ π + π − is found to be 1.08 ± ± ( ) production mechanism, and of the nature of this exotic state. Acknowledgments
We congratulate our colleagues in the CERN accelerator departments for the excellent perfor-mance of the LHC and thank the technical and administrative staffs at CERN and at other CMSinstitutes for their contributions to the success of the CMS effort. In addition, we gratefullyacknowledge the computing centers and personnel of the Worldwide LHC Computing Gridand other centers for delivering so effectively the computing infrastructure essential to ouranalyses. Finally, we acknowledge the enduring support for the construction and operationof the LHC, the CMS detector, and the supporting computing infrastructure provided by thefollowing funding agencies: BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq,CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, andNSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT(Ecuador); MoER, ERC PUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Fin-land); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); NK-FIA (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF(Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CIN-VESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (NewZealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON,RosAtom, RAS, RFBR, and NRC KI (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI, and FEDER(Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCen-ter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC(United Kingdom); DOE and NSF (USA).Individuals have received support from the Marie-Curie program and the European ResearchCouncil and Horizon 2020 Grant, contract Nos. 675440, 724704, 752730, and 765710 (EuropeanUnion); the Leventis Foundation; the Alfred P. Sloan Foundation; the Alexander von Hum-boldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation `a laRecherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Inno-vatie door Wetenschap en Technologie (IWT-Belgium); the F.R.S.-FNRS and FWO (Belgium)under the “Excellence of Science – EOS” – be.h project n. 30820817; the Beijing Municipal Sci-ence & Technology Commission, No. Z191100007219010; the Ministry of Education, Youthand Sports (MEYS) of the Czech Republic; the Deutsche Forschungsgemeinschaft (DFG), un-der Germany’s Excellence Strategy – EXC 2121 “Quantum Universe” – 390833306, and underproject number 400140256 - GRK2497; the Lend ¨ulet (“Momentum”) Program and the J´anosBolyai Research Scholarship of the Hungarian Academy of Sciences, the New National Ex-cellence Program ´UNKP, the NKFIA research grants 123842, 123959, 124845, 124850, 125105,128713, 128786, and 129058 (Hungary); the Council of Science and Industrial Research, In-dia; the Ministry of Science and Higher Education and the National Science Center, contractsOpus 2014/15/B/ST2/03998 and 2015/19/B/ST2/02861 (Poland); the National Priorities Re-search Program by Qatar National Research Fund; the Ministry of Science and Higher Educa-tion, project no. 0723-2020-0041 (Russia); the Programa Estatal de Fomento de la Investigaci ´onCient´ıfica y T´ecnica de Excelencia Mar´ıa de Maeztu, grant MDM-2015-0509 and the ProgramaSevero Ochoa del Principado de Asturias; the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chula-longkorn University and the Chulalongkorn Academic into Its 2nd Century Project Advance-ment Project (Thailand); the Kavli Foundation; the Nvidia Corporation; the SuperMicro Cor-poration; the Welch Foundation, contract C-1845; and the Weston Havens Foundation (USA).
References [1] Belle Collaboration, “Observation of a narrow charmonium-like state in exclusive B ± → K ± π + π − J/ ψ decays”, Phys. Rev. Lett. (2003) 262001, doi:10.1103/PhysRevLett.91.262001 , arXiv:hep-ex/0309032 .[2] BaBar Collaboration, “Study of the B → J/ ψ K − π + π − decay and measurement of the B → X ( ) K − branching fraction”, Phys. Rev. D (2005) 071103, doi:10.1103/PhysRevD.71.071103 , arXiv:hep-ex/0406022 .[3] BESIII Collaboration, “Observation of e + e − → X ( ) at BESIII”, Phys. Rev. Lett. (2014) 092001, doi:10.1103/PhysRevLett.112.092001 , arXiv:1310.4101 .[4] CDF Collaboration, “Observation of the narrow state X ( ) → J/ ψπ + π − in ¯ pp collisions at √ s = Phys. Rev. Lett. (2004) 072001, doi:10.1103/PhysRevLett.93.072001 , arXiv:hep-ex/0312021 .[5] D0 Collaboration, “Observation and properties of the X(3872) decaying to J/ ψπ + π − in pp collisions at √ s = Phys. Rev. Lett. (2004) 162002, doi:10.1103/PhysRevLett.93.162002 , arXiv:hep-ex/0405004 .[6] LHCb Collaboration, “Observation of X(3872) production in pp collisions at √ s = Eur. Phys. J. C (2012) 1972, doi:10.1140/epjc/s10052-012-1972-7 , arXiv:1112.5310 .[7] CMS Collaboration, “Measurement of the X(3872) production cross section via decays toJ/ ψπ + π − in pp collisions at √ s = JHEP (2013) 154, doi:10.1007/JHEP04(2013)154 , arXiv:1302.3968 .[8] ATLAS Collaboration, “Measurements of ψ ( ) and X ( ) → J/ ψπ + π − production inpp collisions at √ s = JHEP (2017) 117, doi:10.1007/JHEP01(2017)117 , arXiv:1610.09303 .[9] CDF Collaboration, “Analysis of the quantum numbers J PC of the X(3872)”, Phys. Rev.Lett. (2007) 132002, doi:10.1103/PhysRevLett.98.132002 , arXiv:hep-ex/0612053 .[10] LHCb Collaboration, “Determination of the X(3872) meson quantum numbers”, Phys.Rev. Lett. (2013) 222001, doi:10.1103/PhysRevLett.110.222001 , arXiv:1302.6269 .[11] N. A. Tornqvist, “Isospin breaking of the narrow charmonium state of Belle at 3872 MeVas a deuson”, Phys. Lett. B (2004) 209, doi:10.1016/j.physletb.2004.03.077 , arXiv:hep-ph/0402237 .[12] L. Maiani, F. Piccinini, A. D. Polosa, and V. Riquer, “Diquark-antidiquarks with hidden oropen charm and the nature of X(3872)”, Phys. Rev. D (2005) 014028, doi:10.1103/PhysRevD.71.014028 , arXiv:hep-ph/0412098 .[13] C. Hanhart, Yu. S. Kalashnikova, and A. V. Nefediev, “Interplay of quark and mesondegrees of freedom in a near-threshold resonance: multi-channel case”, Eur. Phys. J. A (2011) 101, doi:10.1140/epja/i2011-11101-9 , arXiv:1106.1185 .[14] J. C. Collins and M. J. Perry, “Superdense matter: neutrons or asymptotically freequarks?”, Phys. Rev. Lett. (1975) 1353, doi:10.1103/PhysRevLett.34.1353 . eferences [15] E. V. Shuryak, “Quark-gluon plasma and hadronic production of leptons, photons andpions”, Phys. Lett. B (1978) 150, doi:10.1016/0370-2693(78)90370-2 . [ Yad. Fiz. (1978) 796].[16] H. Zhang et al., “Deciphering the nature of X(3872) in heavy ion collisions”, (3, 2020). arXiv:2004.00024 .[17] B. Wu, X. Du, M. Sibila, and R. Rapp, “X(3872) transport in heavy-ion collisions”, (6,2020). arXiv:2006.09945 .[18] ExHIC Collaboration, “Multi-quark hadrons from heavy ion collisions”, Phys. Rev. Lett. (2011) 212001, doi:10.1103/PhysRevLett.106.212001 , arXiv:1011.0852 .[19] ExHIC Collaboration, “Studying exotic hadrons in heavy ion collisions”, Phys. Rev. C (2011) 064910, doi:10.1103/PhysRevC.84.064910 , arXiv:1107.1302 .[20] A. Martinez Torres et al., “On X(3872) production in high energy heavy ion collisions”, Phys. Rev. D (2014) 114023, doi:10.1103/PhysRevD.90.114023 , arXiv:1405.7583 . [Erratum: doi:10.1103/PhysRevD.93.059902 ].[21] H. Sato and K. Yazaki, “On the coalescence model for high energy nuclear reactions”, Physics Letters B (1981) 153, doi:10.1016/0370-2693(81)90976-X .[22] T. Matsui and H. Satz, “J/ ψ suppression by quark-gluon plasma formation”, Phys. Lett. B (1986) 416, doi:10.1016/0370-2693(86)91404-8 .[23] L. M. Abreu et al., “X(3872) production and absorption in a hot hadron gas”,
Phys. Lett. B (2016) 303, doi:10.1016/j.physletb.2016.08.050 , arXiv:1604.07716 .[24] LHCb Collaboration, “Evidence for the decay X ( ) → ψ ( ) γ ”, Nucl. Phys. B (2014) 665, doi:10.1016/j.nuclphysb.2014.06.011 , arXiv:1404.0275 .[25] A. Andronic, P. Braun-Munzinger, and J. Stachel, “Hadron production in centralnucleus-nucleus collisions at chemical freeze-out”, Nucl. Phys. A (2006) 167, doi:10.1016/j.nuclphysa.2006.03.012 , arXiv:nucl-th/0511071 .[26] CMS Collaboration, “Description and performance of track and primary-vertexreconstruction with the CMS tracker”, JINST (2014) P10009, doi:10.1088/1748-0221/9/10/P10009 , arXiv:1405.6569 .[27] CMS Collaboration, “Performance of CMS muon reconstruction in pp collision events at √ s = JINST (2012) P10002, doi:10.1088/1748-0221/7/10/P10002 , arXiv:1206.4071 .[28] CMS Collaboration, “Observation and studies of jet quenching in PbPb collisions atnucleon-nucleon center-of-mass energy = 2.76 TeV”, Phys. Rev. C (2011) 024906, doi:10.1103/PhysRevC.84.024906 , arXiv:1102.1957 .[29] CMS Collaboration, “The CMS experiment at the CERN LHC”, JINST (2008) S08004, doi:10.1088/1748-0221/3/08/S08004 .[30] CMS Collaboration, “Performance of the CMS Level-1 trigger in proton-proton collisionsat √ s =
13 TeV”,
JINST (2020) P10017, doi:10.1088/1748-0221/15/10/P10017 , arXiv:2006.10165 . [31] CMS Collaboration, “The CMS trigger system”, JINST (2017) P01020, doi:10.1088/1748-0221/12/01/P01020 , arXiv:1609.02366 .[32] CMS Collaboration, “Charged-particle nuclear modification factors in PbPb and pPbcollisions at √ s NN = JHEP (2017) 039, doi:10.1007/JHEP04(2017)039 , arXiv:1611.01664 .[33] CMS Collaboration, “Transverse momentum and pseudorapidity distributions ofcharged hadrons in pp collisions at √ s = JHEP (2010) 041, doi:10.1007/JHEP02(2010)041 , arXiv:1002.0621 .[34] T. Sj ¨ostrand et al., “An introduction to PYTHIA
Comput. Phys. Commun. (2015)159, doi:10.1016/j.cpc.2015.01.024 , arXiv:1410.3012 .[35] CMS Collaboration, “Extraction and validation of a new set of CMS PYTHIA
Eur. Phys. J. C (2020) 4, doi:10.1140/epjc/s10052-019-7499-4 , arXiv:1903.12179 .[36] Particle Data Group, P. A. Zyla et al., “Review of particle physics”, Prog. Theor. Exp. Phys. (2020) 083C01, doi:10.1093/ptep/ptaa104 .[37] D. J. Lange, “The EvtGen particle decay simulation package”,
Nucl. Instrum. Meth. A (2001) 152, doi:10.1016/S0168-9002(01)00089-4 .[38] E. Barberio, B. van Eijk, and Z. Was, “Photos — a universal Monte Carlo for QEDradiative corrections in decays”,
Comput. Phys. Commun. (1991) 115, doi:10.1016/0010-4655(91)90012-A .[39] I. P. Lokhtin and A. M. Snigirev, “A model of jet quenching in ultrarelativistic heavy ioncollisions and high- p T hadron spectra at RHIC”, Eur. Phys. J. C (2006) 211, doi:10.1140/epjc/s2005-02426-3 , arXiv:hep-ph/0506189 .[40] H. Voss, A. H ¨ocker, J. Stelzer, and F. Tegenfeldt, “TMVA, the toolkit for multivariate dataanalysis with ROOT”, in XIth International Workshop on Advanced Computing and AnalysisTechniques in Physics Research (ACAT) , p. 40. 2007. arXiv:physics/0703039 .[PoS(ACAT)040]. doi:10.22323/1.050.0040 .[41] CMS Collaboration, “Measurements of inclusive W and Z cross sections in pp collisionsat √ s = JHEP (2011) 080, doi:10.1007/JHEP01(2011)080 , arXiv:1012.2466 .[42] CMS Collaboration, “J/ ψ and ψ ( ) production in pp collisions at √ s = JHEP (2012) 011, doi:10.1007/JHEP02(2012)011 , arXiv:1111.1557 .[43] CMS Collaboration, “Measurement of prompt and nonprompt charmonium suppressionin PbPb collisions at 5.02 TeV”, Eur. Phys. J. C (2018) 509, doi:10.1140/epjc/s10052-018-5950-6 , arXiv:1712.08959 . A The CMS Collaboration
Yerevan Physics Institute, Yerevan, Armenia
A.M. Sirunyan † , A. Tumasyan Institut f ¨ur Hochenergiephysik, Wien, Austria
W. Adam, F. Ambrogi, T. Bergauer, M. Dragicevic, J. Er ¨o, A. Escalante Del Valle, M. Flechl,R. Fr ¨uhwirth , M. Jeitler , N. Krammer, I. Kr¨atschmer, D. Liko, T. Madlener, I. Mikulec, N. Rad,J. Schieck , R. Sch ¨ofbeck, M. Spanring, W. Waltenberger, C.-E. Wulz , M. Zarucki Institute for Nuclear Problems, Minsk, Belarus
V. Drugakov, V. Mossolov, J. Suarez Gonzalez
Universiteit Antwerpen, Antwerpen, Belgium
M.R. Darwish, E.A. De Wolf, D. Di Croce, X. Janssen, T. Kello , A. Lelek, M. Pieters,H. Rejeb Sfar, H. Van Haevermaet, P. Van Mechelen, S. Van Putte, N. Van Remortel Vrije Universiteit Brussel, Brussel, Belgium
F. Blekman, E.S. Bols, S.S. Chhibra, J. D’Hondt, J. De Clercq, D. Lontkovskyi, S. Lowette,I. Marchesini, S. Moortgat, Q. Python, S. Tavernier, W. Van Doninck, P. Van Mulders
Universit´e Libre de Bruxelles, Bruxelles, Belgium
D. Beghin, B. Bilin, B. Clerbaux, G. De Lentdecker, H. Delannoy, B. Dorney, L. Favart,A. Grebenyuk, A.K. Kalsi, L. Moureaux, A. Popov, N. Postiau, E. Starling, L. Thomas,C. Vander Velde, P. Vanlaer, D. Vannerom
Ghent University, Ghent, Belgium
T. Cornelis, D. Dobur, I. Khvastunov , M. Niedziela, C. Roskas, K. Skovpen, M. Tytgat,W. Verbeke, B. Vermassen, M. Vit Universit´e Catholique de Louvain, Louvain-la-Neuve, Belgium
G. Bruno, C. Caputo, P. David, C. Delaere, M. Delcourt, A. Giammanco, V. Lemaitre,J. Prisciandaro, A. Saggio, P. Vischia, J. Zobec
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
G.A. Alves, G. Correia Silva, C. Hensel, A. Moraes
Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
E. Belchior Batista Das Chagas, W. Carvalho, J. Chinellato , E. Coelho, E.M. Da Costa,G.G. Da Silveira , D. De Jesus Damiao, C. De Oliveira Martins, S. Fonseca De Souza,H. Malbouisson, J. Martins , D. Matos Figueiredo, M. Medina Jaime , M. Melo De Almeida,C. Mora Herrera, L. Mundim, H. Nogima, W.L. Prado Da Silva, P. Rebello Teles,L.J. Sanchez Rosas, A. Santoro, A. Sznajder, M. Thiel, E.J. Tonelli Manganote , F. Tor-res Da Silva De Araujo, A. Vilela Pereira Universidade Estadual Paulista a , Universidade Federal do ABC b , S˜ao Paulo, Brazil C.A. Bernardes a , L. Calligaris a , T.R. Fernandez Perez Tomei a , E.M. Gregores b , D.S. Lemos a ,P.G. Mercadante b , S.F. Novaes a , Sandra S. Padula a Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia,Bulgaria
A. Aleksandrov, G. Antchev, R. Hadjiiska, P. Iaydjiev, M. Misheva, M. Rodozov, M. Shopova,G. Sultanov
University of Sofia, Sofia, Bulgaria
M. Bonchev, A. Dimitrov, T. Ivanov, L. Litov, B. Pavlov, P. Petkov, A. Petrov Beihang University, Beijing, China
W. Fang , X. Gao , L. Yuan Department of Physics, Tsinghua University, Beijing, China
M. Ahmad, Z. Hu, Y. Wang
Institute of High Energy Physics, Beijing, China
G.M. Chen , H.S. Chen , M. Chen, C.H. Jiang, D. Leggat, H. Liao, Z. Liu, A. Spiezia, J. Tao,E. Yazgan, H. Zhang, S. Zhang , J. Zhao State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
A. Agapitos, Y. Ban, G. Chen, A. Levin, J. Li, L. Li, Q. Li, Y. Mao, S.J. Qian, D. Wang, Q. Wang
Zhejiang University, Hangzhou, China
M. Xiao
Universidad de Los Andes, Bogota, Colombia
C. Avila, A. Cabrera, C. Florez, C.F. Gonz´alez Hern´andez, M.A. Segura Delgado
Universidad de Antioquia, Medellin, Colombia
J. Mejia Guisao, J.D. Ruiz Alvarez, C.A. Salazar Gonz´alez, N. Vanegas Arbelaez
University of Split, Faculty of Electrical Engineering, Mechanical Engineering and NavalArchitecture, Split, Croatia
D. Giljanovi´c, N. Godinovic, D. Lelas, I. Puljak, T. Sculac
University of Split, Faculty of Science, Split, Croatia
Z. Antunovic, M. Kovac
Institute Rudjer Boskovic, Zagreb, Croatia
V. Brigljevic, D. Ferencek, K. Kadija, B. Mesic, M. Roguljic, A. Starodumov , T. Susa University of Cyprus, Nicosia, Cyprus
M.W. Ather, A. Attikis, E. Erodotou, A. Ioannou, M. Kolosova, S. Konstantinou,G. Mavromanolakis, J. Mousa, C. Nicolaou, F. Ptochos, P.A. Razis, H. Rykaczewski, H. Saka,D. Tsiakkouri
Charles University, Prague, Czech Republic
M. Finger , M. Finger Jr. , A. Kveton, J. Tomsa Escuela Politecnica Nacional, Quito, Ecuador
E. Ayala
Universidad San Francisco de Quito, Quito, Ecuador
E. Carrera Jarrin
Academy of Scientific Research and Technology of the Arab Republic of Egypt, EgyptianNetwork of High Energy Physics, Cairo, Egypt
M.A. Mahmoud , Y. Mohammed National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
S. Bhowmik, A. Carvalho Antunes De Oliveira, R.K. Dewanjee, K. Ehataht, M. Kadastik,M. Raidal, C. Veelken
Department of Physics, University of Helsinki, Helsinki, Finland
P. Eerola, L. Forthomme, H. Kirschenmann, K. Osterberg, M. Voutilainen Helsinki Institute of Physics, Helsinki, Finland
F. Garcia, J. Havukainen, J.K. Heikkil¨a, V. Karim¨aki, M.S. Kim, R. Kinnunen, T. Lamp´en,K. Lassila-Perini, S. Laurila, S. Lehti, T. Lind´en, H. Siikonen, E. Tuominen, J. Tuominiemi
Lappeenranta University of Technology, Lappeenranta, Finland
P. Luukka, T. Tuuva
IRFU, CEA, Universit´e Paris-Saclay, Gif-sur-Yvette, France
M. Besancon, F. Couderc, M. Dejardin, D. Denegri, B. Fabbro, J.L. Faure, F. Ferri, S. Ganjour,A. Givernaud, P. Gras, G. Hamel de Monchenault, P. Jarry, C. Leloup, B. Lenzi, E. Locci,J. Malcles, J. Rander, A. Rosowsky, M. ¨O. Sahin, A. Savoy-Navarro , M. Titov, G.B. Yu Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechniquede Paris, Palaiseau, France
S. Ahuja, C. Amendola, F. Beaudette, M. Bonanomi, P. Busson, C. Charlot, B. Diab, G. Falmagne,R. Granier de Cassagnac, I. Kucher, A. Lobanov, C. Martin Perez, M. Nguyen, C. Ochando,P. Paganini, J. Rembser, R. Salerno, J.B. Sauvan, Y. Sirois, A. Zabi, A. Zghiche
Universit´e de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
J.-L. Agram , J. Andrea, D. Bloch, G. Bourgatte, J.-M. Brom, E.C. Chabert, C. Collard,E. Conte , J.-C. Fontaine , D. Gel´e, U. Goerlach, C. Grimault, A.-C. Le Bihan, N. Tonon,P. Van Hove Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules,CNRS/IN2P3, Villeurbanne, France
S. Gadrat
Institut de Physique des 2 Infinis de Lyon (IP2I ), Villeurbanne, France
S. Beauceron, C. Bernet, G. Boudoul, C. Camen, A. Carle, N. Chanon, R. Chierici, D. Contardo,P. Depasse, H. El Mamouni, J. Fay, S. Gascon, M. Gouzevitch, B. Ille, Sa. Jain, I.B. Laktineh,H. Lattaud, A. Lesauvage, M. Lethuillier, L. Mirabito, S. Perries, V. Sordini, L. Torterotot,G. Touquet, M. Vander Donckt, S. Viret
Georgian Technical University, Tbilisi, Georgia
T. Toriashvili Tbilisi State University, Tbilisi, Georgia
Z. Tsamalaidze RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
C. Autermann, L. Feld, K. Klein, M. Lipinski, D. Meuser, A. Pauls, M. Preuten, M.P. Rauch,J. Schulz, M. Teroerde
RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
M. Erdmann, B. Fischer, S. Ghosh, T. Hebbeker, K. Hoepfner, H. Keller, L. Mastrolorenzo,M. Merschmeyer, A. Meyer, P. Millet, G. Mocellin, S. Mondal, S. Mukherjee, D. Noll, A. Novak,T. Pook, A. Pozdnyakov, T. Quast, M. Radziej, Y. Rath, H. Reithler, J. Roemer, A. Schmidt,S.C. Schuler, A. Sharma, S. Wiedenbeck, S. Zaleski
RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
G. Fl ¨ugge, W. Haj Ahmad , O. Hlushchenko, T. Kress, T. M ¨uller, A. Nowack, C. Pistone,O. Pooth, D. Roy, H. Sert, A. Stahl Deutsches Elektronen-Synchrotron, Hamburg, Germany
M. Aldaya Martin, P. Asmuss, I. Babounikau, H. Bakhshiansohi, K. Beernaert, O. Behnke, A. Berm ´udez Mart´ınez, A.A. Bin Anuar, K. Borras , V. Botta, A. Campbell, A. Cardini,P. Connor, S. Consuegra Rodr´ıguez, C. Contreras-Campana, V. Danilov, A. De Wit,M.M. Defranchis, C. Diez Pardos, D. Dom´ınguez Damiani, G. Eckerlin, D. Eckstein, T. Eichhorn,A. Elwood, E. Eren, L.I. Estevez Banos, E. Gallo , A. Geiser, A. Grohsjean, M. Guthoff,M. Haranko, A. Harb, A. Jafari, N.Z. Jomhari, H. Jung, A. Kasem , M. Kasemann, H. Kaveh,J. Keaveney, C. Kleinwort, J. Knolle, D. Kr ¨ucker, W. Lange, T. Lenz, J. Lidrych, K. Lipka,W. Lohmann , R. Mankel, I.-A. Melzer-Pellmann, A.B. Meyer, M. Meyer, M. Missiroli,J. Mnich, A. Mussgiller, V. Myronenko, D. P´erez Ad´an, S.K. Pflitsch, D. Pitzl, A. Raspereza,A. Saibel, M. Savitskyi, V. Scheurer, P. Sch ¨utze, C. Schwanenberger, R. Shevchenko, A. Singh,R.E. Sosa Ricardo, H. Tholen, O. Turkot, A. Vagnerini, M. Van De Klundert, R. Walsh, Y. Wen,K. Wichmann, C. Wissing, O. Zenaiev, R. Zlebcik University of Hamburg, Hamburg, Germany
R. Aggleton, S. Bein, L. Benato, A. Benecke, T. Dreyer, A. Ebrahimi, F. Feindt, A. Fr ¨ohlich,C. Garbers, E. Garutti, D. Gonzalez, P. Gunnellini, J. Haller, A. Hinzmann, A. Karavdina,G. Kasieczka, R. Klanner, R. Kogler, N. Kovalchuk, S. Kurz, V. Kutzner, J. Lange, T. Lange,A. Malara, J. Multhaup, C.E.N. Niemeyer, A. Reimers, O. Rieger, P. Schleper, S. Schumann,J. Schwandt, J. Sonneveld, H. Stadie, G. Steinbr ¨uck, B. Vormwald, I. Zoi
Karlsruher Institut fuer Technologie, Karlsruhe, Germany
M. Akbiyik, M. Baselga, S. Baur, T. Berger, E. Butz, R. Caspart, T. Chwalek, W. De Boer,A. Dierlamm, K. El Morabit, N. Faltermann, M. Giffels, A. Gottmann, F. Hartmann ,C. Heidecker, U. Husemann, M.A. Iqbal, S. Kudella, S. Maier, S. Mitra, M.U. Mozer, D. M ¨uller,Th. M ¨uller, M. Musich, A. N ¨urnberg, G. Quast, K. Rabbertz, D. Savoiu, D. Sch¨afer, M. Schnepf,M. Schr ¨oder, I. Shvetsov, H.J. Simonis, R. Ulrich, M. Wassmer, M. Weber, C. W ¨ohrmann, R. Wolf,S. Wozniewski Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi,Greece
G. Anagnostou, P. Asenov, G. Daskalakis, T. Geralis, A. Kyriakis, D. Loukas, G. Paspalaki,A. Stakia
National and Kapodistrian University of Athens, Athens, Greece
M. Diamantopoulou, G. Karathanasis, P. Kontaxakis, A. Manousakis-katsikakis, A. Panagiotou,I. Papavergou, N. Saoulidou, K. Theofilatos, K. Vellidis, E. Vourliotis
National Technical University of Athens, Athens, Greece
G. Bakas, K. Kousouris, I. Papakrivopoulos, G. Tsipolitis, A. Zacharopoulou
University of Io´annina, Io´annina, Greece
I. Evangelou, C. Foudas, P. Gianneios, P. Katsoulis, P. Kokkas, S. Mallios, K. Manitara,N. Manthos, I. Papadopoulos, J. Strologas, F.A. Triantis, D. Tsitsonis
MTA-ELTE Lend ¨ulet CMS Particle and Nuclear Physics Group, E ¨otv ¨os Lor´and University,Budapest, Hungary
M. Bart ´ok , R. Chudasama, M. Csanad, P. Major, K. Mandal, A. Mehta, G. Pasztor, O. Sur´anyi,G.I. Veres Wigner Research Centre for Physics, Budapest, Hungary
G. Bencze, C. Hajdu, D. Horvath , F. Sikler, V. Veszpremi, G. Vesztergombi † Institute of Nuclear Research ATOMKI, Debrecen, Hungary
N. Beni, S. Czellar, J. Karancsi , J. Molnar, Z. Szillasi Institute of Physics, University of Debrecen, Debrecen, Hungary
P. Raics, D. Teyssier, Z.L. Trocsanyi, B. Ujvari
Eszterhazy Karoly University, Karoly Robert Campus, Gyongyos, Hungary
T. Csorgo, W.J. Metzger, F. Nemes, T. Novak
Indian Institute of Science (IISc), Bangalore, India
S. Choudhury, J.R. Komaragiri, P.C. Tiwari
National Institute of Science Education and Research, HBNI, Bhubaneswar, India
S. Bahinipati , C. Kar, G. Kole, P. Mal, V.K. Muraleedharan Nair Bindhu, A. Nayak ,D.K. Sahoo , S.K. Swain Panjab University, Chandigarh, India
S. Bansal, S.B. Beri, V. Bhatnagar, S. Chauhan, N. Dhingra , R. Gupta, A. Kaur, M. Kaur, S. Kaur,P. Kumari, M. Lohan, M. Meena, K. Sandeep, S. Sharma, J.B. Singh, A.K. Virdi, G. Walia University of Delhi, Delhi, India
A. Bhardwaj, B.C. Choudhary, R.B. Garg, M. Gola, S. Keshri, Ashok Kumar, M. Naimuddin,P. Priyanka, K. Ranjan, Aashaq Shah, R. Sharma
Saha Institute of Nuclear Physics, HBNI, Kolkata, India
R. Bhardwaj , M. Bharti , R. Bhattacharya, S. Bhattacharya, U. Bhawandeep , D. Bhowmik,S. Dutta, S. Ghosh, B. Gomber , M. Maity , K. Mondal, S. Nandan, A. Purohit, P.K. Rout,G. Saha, S. Sarkar, M. Sharan, B. Singh , S. Thakur Indian Institute of Technology Madras, Madras, India
P.K. Behera, S.C. Behera, P. Kalbhor, A. Muhammad, P.R. Pujahari, A. Sharma, A.K. Sikdar
Bhabha Atomic Research Centre, Mumbai, India
D. Dutta, V. Jha, D.K. Mishra, P.K. Netrakanti, L.M. Pant, P. Shukla
Tata Institute of Fundamental Research-A, Mumbai, India
T. Aziz, M.A. Bhat, S. Dugad, G.B. Mohanty, N. Sur, Ravindra Kumar Verma
Tata Institute of Fundamental Research-B, Mumbai, India
S. Banerjee, S. Bhattacharya, S. Chatterjee, P. Das, M. Guchait, S. Karmakar, S. Kumar,G. Majumder, K. Mazumdar, N. Sahoo, S. Sawant
Indian Institute of Science Education and Research (IISER), Pune, India
S. Dube, B. Kansal, A. Kapoor, K. Kothekar, S. Pandey, A. Rane, A. Rastogi, S. Sharma
Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
S. Chenarani, S.M. Etesami, M. Khakzad, M. Mohammadi Najafabadi, M. Naseri,F. Rezaei Hosseinabadi
University College Dublin, Dublin, Ireland
M. Felcini, M. Grunewald
INFN Sezione di Bari a , Universit`a di Bari b , Politecnico di Bari c , Bari, Italy M. Abbrescia a , b , R. Aly a , b ,30 , C. Calabria a , b , A. Colaleo a , D. Creanza a , c , L. Cristella a , b ,N. De Filippis a , c , M. De Palma a , b , A. Di Florio a , b , W. Elmetenawee a , b , L. Fiore a , A. Gelmi a , b ,G. Iaselli a , c , M. Ince a , b , S. Lezki a , b , G. Maggi a , c , M. Maggi a , J.A. Merlin a , G. Miniello a , b , S. My a , b ,S. Nuzzo a , b , A. Pompili a , b , G. Pugliese a , c , R. Radogna a , A. Ranieri a , G. Selvaggi a , b , L. Silvestris a ,F.M. Simone a , b , R. Venditti a , P. Verwilligen a INFN Sezione di Bologna a , Universit`a di Bologna b , Bologna, Italy G. Abbiendi a , C. Battilana a , b , D. Bonacorsi a , b , L. Borgonovi a , b , S. Braibant-Giacomelli a , b ,R. Campanini a , b , P. Capiluppi a , b , A. Castro a , b , F.R. Cavallo a , G. Codispoti a , b , M. Cuffiani a , b ,G.M. Dallavalle a , F. Fabbri a , A. Fanfani a , b , E. Fontanesi a , b , P. Giacomelli a , L. Giommi a , b ,C. Grandi a , L. Guiducci a , b , F. Iemmi a , b , S. Lo Meo a ,31 , S. Marcellini a , G. Masetti a ,F.L. Navarria a , b , A. Perrotta a , F. Primavera a , b , A.M. Rossi a , b , T. Rovelli a , b , G.P. Siroli a , b , N. Tosi a INFN Sezione di Catania a , Universit`a di Catania b , Catania, Italy S. Albergo a , b ,32 , S. Costa a , b ,32 , A. Di Mattia a , R. Potenza a , b , A. Tricomi a , b ,32 , C. Tuve a , b INFN Sezione di Firenze a , Universit`a di Firenze b , Firenze, Italy G. Barbagli a , A. Cassese a , R. Ceccarelli a , b , V. Ciulli a , b , C. Civinini a , R. D’Alessandro a , b , F. Fiori a ,E. Focardi a , b , G. Latino a , b , P. Lenzi a , b , M. Meschini a , S. Paoletti a , G. Sguazzoni a , L. Viliani a INFN Laboratori Nazionali di Frascati, Frascati, Italy
L. Benussi, S. Bianco, D. Piccolo
INFN Sezione di Genova a , Universit`a di Genova b , Genova, Italy M. Bozzo a , b , F. Ferro a , R. Mulargia a , b , E. Robutti a , S. Tosi a , b INFN Sezione di Milano-Bicocca a , Universit`a di Milano-Bicocca b , Milano, Italy A. Benaglia a , A. Beschi a , b , F. Brivio a , b , V. Ciriolo a , b ,17 , M.E. Dinardo a , b , P. Dini a , S. Gennai a ,A. Ghezzi a , b , P. Govoni a , b , L. Guzzi a , b , M. Malberti a , S. Malvezzi a , D. Menasce a , F. Monti a , b ,L. Moroni a , M. Paganoni a , b , D. Pedrini a , S. Ragazzi a , b , T. Tabarelli de Fatis a , b , D. Valsecchi a , b ,17 ,D. Zuolo a , b INFN Sezione di Napoli a , Universit`a di Napoli ’Federico II’ b , Napoli, Italy, Universit`a dellaBasilicata c , Potenza, Italy, Universit`a G. Marconi d , Roma, Italy S. Buontempo a , N. Cavallo a , c , A. De Iorio a , b , A. Di Crescenzo a , b , F. Fabozzi a , c , F. Fienga a ,G. Galati a , A.O.M. Iorio a , b , L. Layer a , b , L. Lista a , b , S. Meola a , d ,17 , P. Paolucci a ,17 , B. Rossi a ,C. Sciacca a , b , E. Voevodina a , b INFN Sezione di Padova a , Universit`a di Padova b , Padova, Italy, Universit`a di Trento c ,Trento, Italy P. Azzi a , N. Bacchetta a , D. Bisello a , b , A. Boletti a , b , A. Bragagnolo a , b , R. Carlin a , b , P. Checchia a ,P. De Castro Manzano a , T. Dorigo a , U. Dosselli a , F. Gasparini a , b , U. Gasparini a , b , A. Gozzelino a ,S.Y. Hoh a , b , M. Margoni a , b , A.T. Meneguzzo a , b , J. Pazzini a , b , M. Presilla b , P. Ronchese a , b ,R. Rossin a , b , F. Simonetto a , b , A. Tiko a , M. Tosi a , b , M. Zanetti a , b , P. Zotto a , b , A. Zucchetta a , b ,G. Zumerle a , b INFN Sezione di Pavia a , Universit`a di Pavia b , Pavia, Italy A. Braghieri a , D. Fiorina a , b , P. Montagna a , b , S.P. Ratti a , b , V. Re a , M. Ressegotti a , b , C. Riccardi a , b ,P. Salvini a , I. Vai a , P. Vitulo a , b INFN Sezione di Perugia a , Universit`a di Perugia b , Perugia, Italy M. Biasini a , b , G.M. Bilei a , D. Ciangottini a , b , L. Fan `o a , b , P. Lariccia a , b , R. Leonardi a , b , E. Manoni a ,G. Mantovani a , b , V. Mariani a , b , M. Menichelli a , A. Rossi a , b , A. Santocchia a , b , D. Spiga a INFN Sezione di Pisa a , Universit`a di Pisa b , Scuola Normale Superiore di Pisa c , Pisa Italy,Universit`a di Siena d , Siena, Italy K. Androsov a , P. Azzurri a , G. Bagliesi a , V. Bertacchi a , c , L. Bianchini a , T. Boccali a , R. Castaldi a ,M.A. Ciocci a , b , R. Dell’Orso a , S. Donato a , L. Giannini a , c , A. Giassi a , M.T. Grippo a ,F. Ligabue a , c , E. Manca a , c , G. Mandorli a , c , A. Messineo a , b , F. Palla a , A. Rizzi a , b , G. Rolandi a , c ,7
INFN Sezione di Genova a , Universit`a di Genova b , Genova, Italy M. Bozzo a , b , F. Ferro a , R. Mulargia a , b , E. Robutti a , S. Tosi a , b INFN Sezione di Milano-Bicocca a , Universit`a di Milano-Bicocca b , Milano, Italy A. Benaglia a , A. Beschi a , b , F. Brivio a , b , V. Ciriolo a , b ,17 , M.E. Dinardo a , b , P. Dini a , S. Gennai a ,A. Ghezzi a , b , P. Govoni a , b , L. Guzzi a , b , M. Malberti a , S. Malvezzi a , D. Menasce a , F. Monti a , b ,L. Moroni a , M. Paganoni a , b , D. Pedrini a , S. Ragazzi a , b , T. Tabarelli de Fatis a , b , D. Valsecchi a , b ,17 ,D. Zuolo a , b INFN Sezione di Napoli a , Universit`a di Napoli ’Federico II’ b , Napoli, Italy, Universit`a dellaBasilicata c , Potenza, Italy, Universit`a G. Marconi d , Roma, Italy S. Buontempo a , N. Cavallo a , c , A. De Iorio a , b , A. Di Crescenzo a , b , F. Fabozzi a , c , F. Fienga a ,G. Galati a , A.O.M. Iorio a , b , L. Layer a , b , L. Lista a , b , S. Meola a , d ,17 , P. Paolucci a ,17 , B. Rossi a ,C. Sciacca a , b , E. Voevodina a , b INFN Sezione di Padova a , Universit`a di Padova b , Padova, Italy, Universit`a di Trento c ,Trento, Italy P. Azzi a , N. Bacchetta a , D. Bisello a , b , A. Boletti a , b , A. Bragagnolo a , b , R. Carlin a , b , P. Checchia a ,P. De Castro Manzano a , T. Dorigo a , U. Dosselli a , F. Gasparini a , b , U. Gasparini a , b , A. Gozzelino a ,S.Y. Hoh a , b , M. Margoni a , b , A.T. Meneguzzo a , b , J. Pazzini a , b , M. Presilla b , P. Ronchese a , b ,R. Rossin a , b , F. Simonetto a , b , A. Tiko a , M. Tosi a , b , M. Zanetti a , b , P. Zotto a , b , A. Zucchetta a , b ,G. Zumerle a , b INFN Sezione di Pavia a , Universit`a di Pavia b , Pavia, Italy A. Braghieri a , D. Fiorina a , b , P. Montagna a , b , S.P. Ratti a , b , V. Re a , M. Ressegotti a , b , C. Riccardi a , b ,P. Salvini a , I. Vai a , P. Vitulo a , b INFN Sezione di Perugia a , Universit`a di Perugia b , Perugia, Italy M. Biasini a , b , G.M. Bilei a , D. Ciangottini a , b , L. Fan `o a , b , P. Lariccia a , b , R. Leonardi a , b , E. Manoni a ,G. Mantovani a , b , V. Mariani a , b , M. Menichelli a , A. Rossi a , b , A. Santocchia a , b , D. Spiga a INFN Sezione di Pisa a , Universit`a di Pisa b , Scuola Normale Superiore di Pisa c , Pisa Italy,Universit`a di Siena d , Siena, Italy K. Androsov a , P. Azzurri a , G. Bagliesi a , V. Bertacchi a , c , L. Bianchini a , T. Boccali a , R. Castaldi a ,M.A. Ciocci a , b , R. Dell’Orso a , S. Donato a , L. Giannini a , c , A. Giassi a , M.T. Grippo a ,F. Ligabue a , c , E. Manca a , c , G. Mandorli a , c , A. Messineo a , b , F. Palla a , A. Rizzi a , b , G. Rolandi a , c ,7 S. Roy Chowdhury a , c , A. Scribano a , P. Spagnolo a , R. Tenchini a , G. Tonelli a , b , N. Turini a , d ,A. Venturi a , P.G. Verdini a INFN Sezione di Roma a , Sapienza Universit`a di Roma b , Rome, Italy F. Cavallari a , M. Cipriani a , b , D. Del Re a , b , E. Di Marco a , M. Diemoz a , E. Longo a , b , P. Meridiani a ,G. Organtini a , b , F. Pandolfi a , R. Paramatti a , b , C. Quaranta a , b , S. Rahatlou a , b , C. Rovelli a ,F. Santanastasio a , b , L. Soffi a , b , R. Tramontano a , b INFN Sezione di Torino a , Universit`a di Torino b , Torino, Italy, Universit`a del PiemonteOrientale c , Novara, Italy N. Amapane a , b , R. Arcidiacono a , c , S. Argiro a , b , M. Arneodo a , c , N. Bartosik a , R. Bellan a , b ,A. Bellora a , b , C. Biino a , A. Cappati a , b , N. Cartiglia a , S. Cometti a , M. Costa a , b , R. Covarelli a , b ,N. Demaria a , J.R. Gonz´alez Fern´andez a , B. Kiani a , b , F. Legger a , C. Mariotti a , S. Maselli a ,E. Migliore a , b , V. Monaco a , b , E. Monteil a , b , M. Monteno a , M.M. Obertino a , b , G. Ortona a ,L. Pacher a , b , N. Pastrone a , M. Pelliccioni a , G.L. Pinna Angioni a , b , A. Romero a , b , M. Ruspa a , c ,R. Salvatico a , b , V. Sola a , A. Solano a , b , D. Soldi a , b , A. Staiano a , D. Trocino a , b INFN Sezione di Trieste a , Universit`a di Trieste b , Trieste, Italy S. Belforte a , V. Candelise a , b , M. Casarsa a , F. Cossutti a , A. Da Rold a , b , G. Della Ricca a , b ,F. Vazzoler a , b , A. Zanetti a Kyungpook National University, Daegu, Korea
B. Kim, D.H. Kim, G.N. Kim, J. Lee, S.W. Lee, C.S. Moon, Y.D. Oh, S.I. Pak, S. Sekmen, D.C. Son,Y.C. Yang
Chonnam National University, Institute for Universe and Elementary Particles, Kwangju,Korea
H. Kim, D.H. Moon
Hanyang University, Seoul, Korea
B. Francois, T.J. Kim, J. Park
Korea University, Seoul, Korea
S. Cho, S. Choi, Y. Go, S. Ha, B. Hong, K. Lee, K.S. Lee, J. Lim, J. Park, S.K. Park, Y. Roh, J. Yoo
Kyung Hee University, Department of Physics, Seoul, Republic of Korea
J. Goh
Sejong University, Seoul, Korea
H.S. Kim
Seoul National University, Seoul, Korea
J. Almond, J.H. Bhyun, J. Choi, S. Jeon, J. Kim, J.S. Kim, H. Lee, K. Lee, S. Lee, K. Nam, M. Oh,S.B. Oh, B.C. Radburn-Smith, U.K. Yang, H.D. Yoo, I. Yoon
University of Seoul, Seoul, Korea
D. Jeon, J.H. Kim, J.S.H. Lee, I.C. Park, I.J. Watson
Sungkyunkwan University, Suwon, Korea
Y. Choi, C. Hwang, Y. Jeong, J. Lee, Y. Lee, I. Yu
Riga Technical University, Riga, Latvia
V. Veckalns Vilnius University, Vilnius, Lithuania
V. Dudenas, A. Juodagalvis, A. Rinkevicius, G. Tamulaitis, J. Vaitkus National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
F. Mohamad Idris , W.A.T. Wan Abdullah, M.N. Yusli, Z. Zolkapli Universidad de Sonora (UNISON), Hermosillo, Mexico
J.F. Benitez, A. Castaneda Hernandez, J.A. Murillo Quijada, L. Valencia Palomo
Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
H. Castilla-Valdez, E. De La Cruz-Burelo, I. Heredia-De La Cruz , R. Lopez-Fernandez,A. Sanchez-Hernandez Universidad Iberoamericana, Mexico City, Mexico
S. Carrillo Moreno, C. Oropeza Barrera, M. Ramirez-Garcia, F. Vazquez Valencia
Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
J. Eysermans, I. Pedraza, H.A. Salazar Ibarguen, C. Uribe Estrada
Universidad Aut ´onoma de San Luis Potos´ı, San Luis Potos´ı, Mexico
A. Morelos Pineda
University of Montenegro, Podgorica, Montenegro
J. Mijuskovic , N. Raicevic University of Auckland, Auckland, New Zealand
D. Krofcheck
University of Canterbury, Christchurch, New Zealand
S. Bheesette, P.H. Butler, P. Lujan
National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
A. Ahmad, M. Ahmad, M.I.M. Awan, Q. Hassan, H.R. Hoorani, W.A. Khan, M.A. Shah,M. Shoaib, M. Waqas
AGH University of Science and Technology Faculty of Computer Science, Electronics andTelecommunications, Krakow, Poland
V. Avati, L. Grzanka, M. Malawski
National Centre for Nuclear Research, Swierk, Poland
H. Bialkowska, M. Bluj, B. Boimska, M. G ´orski, M. Kazana, M. Szleper, P. Zalewski
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
K. Bunkowski, A. Byszuk , K. Doroba, A. Kalinowski, M. Konecki, J. Krolikowski,M. Olszewski, M. Walczak Laborat ´orio de Instrumenta¸c˜ao e F´ısica Experimental de Part´ıculas, Lisboa, Portugal
M. Araujo, P. Bargassa, D. Bastos, A. Di Francesco, P. Faccioli, B. Galinhas, M. Gallinaro,J. Hollar, N. Leonardo, T. Niknejad, J. Seixas, K. Shchelina, G. Strong, O. Toldaiev, J. Varela
Joint Institute for Nuclear Research, Dubna, Russia
S. Afanasiev, P. Bunin, Y. Ershov, I. Golutvin, I. Gorbunov, A. Kamenev, V. Karjavine,V. Korenkov, A. Lanev, A. Malakhov, V. Matveev , V.V. Mitsyn, P. Moisenz, V. Palichik,V. Perelygin, S. Shmatov, N. Skatchkov, B.S. Yuldashev , A. Zarubin, V. Zhiltsov Petersburg Nuclear Physics Institute, Gatchina (St. Petersburg), Russia
L. Chtchipounov, V. Golovtcov, Y. Ivanov, V. Kim , E. Kuznetsova , P. Levchenko, V. Murzin,V. Oreshkin, I. Smirnov, D. Sosnov, V. Sulimov, L. Uvarov, A. Vorobyev Institute for Nuclear Research, Moscow, Russia
Yu. Andreev, A. Dermenev, S. Gninenko, N. Golubev, A. Karneyeu, M. Kirsanov, N. Krasnikov,A. Pashenkov, D. Tlisov, A. Toropin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of NRC‘Kurchatov Institute’, Moscow, Russia
V. Epshteyn, V. Gavrilov, N. Lychkovskaya, A. Nikitenko , V. Popov, I. Pozdnyakov,G. Safronov, A. Spiridonov, A. Stepennov, M. Toms, E. Vlasov, A. Zhokin Moscow Institute of Physics and Technology, Moscow, Russia
T. Aushev
National Research Nuclear University ’Moscow Engineering Physics Institute’ (MEPhI),Moscow, Russia
O. Bychkova, R. Chistov , M. Danilov , S. Polikarpov , E. Tarkovskii P.N. Lebedev Physical Institute, Moscow, Russia
V. Andreev, M. Azarkin, I. Dremin, M. Kirakosyan, A. Terkulov
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow,Russia
A. Belyaev, E. Boos, A. Demiyanov, A. Ershov, A. Gribushin, O. Kodolova, V. Korotkikh,I. Lokhtin, S. Obraztsov, S. Petrushanko, V. Savrin, A. Snigirev, I. Vardanyan
Novosibirsk State University (NSU), Novosibirsk, Russia
A. Barnyakov , V. Blinov , T. Dimova , L. Kardapoltsev , Y. Skovpen Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’,Protvino, Russia
I. Azhgirey, I. Bayshev, S. Bitioukov, V. Kachanov, D. Konstantinov, P. Mandrik, V. Petrov,R. Ryutin, S. Slabospitskii, A. Sobol, S. Troshin, N. Tyurin, A. Uzunian, A. Volkov
National Research Tomsk Polytechnic University, Tomsk, Russia
A. Babaev, A. Iuzhakov, V. Okhotnikov
Tomsk State University, Tomsk, Russia
V. Borchsh, V. Ivanchenko, E. Tcherniaev
University of Belgrade: Faculty of Physics and VINCA Institute of Nuclear Sciences,Belgrade, Serbia
P. Adzic , P. Cirkovic, M. Dordevic, P. Milenovic, J. Milosevic, M. Stojanovic Centro de Investigaciones Energ´eticas Medioambientales y Tecnol ´ogicas (CIEMAT),Madrid, Spain
M. Aguilar-Benitez, J. Alcaraz Maestre, A. ´Alvarez Fern´andez, I. Bachiller, M. Barrio Luna,Cristina F. Bedoya, J.A. Brochero Cifuentes, C.A. Carrillo Montoya, M. Cepeda, M. Cerrada,N. Colino, B. De La Cruz, A. Delgado Peris, J.P. Fern´andez Ramos, J. Flix, M.C. Fouz,O. Gonzalez Lopez, S. Goy Lopez, J.M. Hernandez, M.I. Josa, D. Moran, ´A. Navarro Tobar,A. P´erez-Calero Yzquierdo, J. Puerta Pelayo, I. Redondo, L. Romero, S. S´anchez Navas,M.S. Soares, A. Triossi, C. Willmott
Universidad Aut ´onoma de Madrid, Madrid, Spain
C. Albajar, J.F. de Troc ´oniz, R. Reyes-Almanza Universidad de Oviedo, Instituto Universitario de Ciencias y Tecnolog´ıas Espaciales deAsturias (ICTEA), Oviedo, Spain
B. Alvarez Gonzalez, J. Cuevas, C. Erice, J. Fernandez Menendez, S. Folgueras, I. Gonzalez Ca-ballero, E. Palencia Cortezon, C. Ram ´on ´Alvarez, V. Rodr´ıguez Bouza, S. Sanchez Cruz
Instituto de F´ısica de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
I.J. Cabrillo, A. Calderon, B. Chazin Quero, J. Duarte Campderros, M. Fernandez,P.J. Fern´andez Manteca, A. Garc´ıa Alonso, G. Gomez, C. Martinez Rivero, P. Mar-tinez Ruiz del Arbol, F. Matorras, J. Piedra Gomez, C. Prieels, F. Ricci-Tam, T. Rodrigo, A. Ruiz-Jimeno, L. Russo , L. Scodellaro, I. Vila, J.M. Vizan Garcia University of Colombo, Colombo, Sri Lanka
D.U.J. Sonnadara
University of Ruhuna, Department of Physics, Matara, Sri Lanka
W.G.D. Dharmaratna, N. Wickramage
CERN, European Organization for Nuclear Research, Geneva, Switzerland
T.K. Aarrestad, D. Abbaneo, B. Akgun, E. Auffray, G. Auzinger, J. Baechler, P. Baillon, A.H. Ball,D. Barney, J. Bendavid, M. Bianco, A. Bocci, P. Bortignon, E. Bossini, E. Brondolin, T. Camporesi,A. Caratelli, G. Cerminara, E. Chapon, G. Cucciati, D. d’Enterria, A. Dabrowski, N. Daci,V. Daponte, A. David, O. Davignon, A. De Roeck, M. Deile, R. Di Maria, M. Dobson, M. D ¨unser,N. Dupont, A. Elliott-Peisert, N. Emriskova, F. Fallavollita , D. Fasanella, S. Fiorendi,G. Franzoni, J. Fulcher, W. Funk, S. Giani, D. Gigi, K. Gill, F. Glege, L. Gouskos, M. Gruchala,M. Guilbaud, D. Gulhan, J. Hegeman, C. Heidegger, Y. Iiyama, V. Innocente, T. James, P. Janot,O. Karacheban , J. Kaspar, J. Kieseler, M. Krammer , N. Kratochwil, C. Lange, P. Lecoq,K. Long, C. Lourenc¸o, L. Malgeri, M. Mannelli, A. Massironi, F. Meijers, S. Mersi, E. Meschi,F. Moortgat, M. Mulders, J. Ngadiuba, J. Niedziela, S. Nourbakhsh, S. Orfanelli, L. Orsini,F. Pantaleo , L. Pape, E. Perez, M. Peruzzi, A. Petrilli, G. Petrucciani, A. Pfeiffer, M. Pierini,F.M. Pitters, D. Rabady, A. Racz, M. Rieger, M. Rovere, H. Sakulin, J. Salfeld-Nebgen, S. Scarfi,C. Sch¨afer, C. Schwick, M. Selvaggi, A. Sharma, P. Silva, W. Snoeys, P. Sphicas , J. Steggemann,S. Summers, V.R. Tavolaro, D. Treille, A. Tsirou, G.P. Van Onsem, A. Vartak, M. Verzetti,K.A. Wozniak, W.D. Zeuner Paul Scherrer Institut, Villigen, Switzerland
L. Caminada , K. Deiters, W. Erdmann, R. Horisberger, Q. Ingram, H.C. Kaestli, D. Kotlinski,U. Langenegger, T. Rohe ETH Zurich - Institute for Particle Physics and Astrophysics (IPA), Zurich, Switzerland
M. Backhaus, P. Berger, A. Calandri, N. Chernyavskaya, G. Dissertori, M. Dittmar, M. Doneg`a,C. Dorfer, T.A. G ´omez Espinosa, C. Grab, D. Hits, W. Lustermann, R.A. Manzoni,M.T. Meinhard, F. Micheli, P. Musella, F. Nessi-Tedaldi, F. Pauss, V. Perovic, G. Perrin,L. Perrozzi, S. Pigazzini, M.G. Ratti, M. Reichmann, C. Reissel, T. Reitenspiess, B. Ristic,D. Ruini, D.A. Sanz Becerra, M. Sch ¨onenberger, L. Shchutska, M.L. Vesterbacka Olsson,R. Wallny, D.H. Zhu
Universit¨at Z ¨urich, Zurich, Switzerland
C. Amsler , C. Botta, D. Brzhechko, M.F. Canelli, A. De Cosa, R. Del Burgo, B. Kilminster,S. Leontsinis, V.M. Mikuni, I. Neutelings, G. Rauco, P. Robmann, K. Schweiger, Y. Takahashi,S. Wertz National Central University, Chung-Li, Taiwan
C.M. Kuo, W. Lin, A. Roy, T. Sarkar , S.S. Yu National Taiwan University (NTU), Taipei, Taiwan
P. Chang, Y. Chao, K.F. Chen, P.H. Chen, W.-S. Hou, Y.y. Li, R.-S. Lu, E. Paganis, A. Psallidas,A. Steen
Chulalongkorn University, Faculty of Science, Department of Physics, Bangkok, Thailand
B. Asavapibhop, C. Asawatangtrakuldee, N. Srimanobhas, N. Suwonjandee
C¸ ukurova University, Physics Department, Science and Art Faculty, Adana, Turkey
A. Bat, F. Boran, A. Celik , S. Damarseckin , Z.S. Demiroglu, F. Dolek, C. Dozen ,I. Dumanoglu , G. Gokbulut, Emine Gurpinar Guler , Y. Guler, I. Hos , C. Isik, E.E. Kangal ,O. Kara, A. Kayis Topaksu, U. Kiminsu, G. Onengut, K. Ozdemir , A.E. Simsek, U.G. Tok,S. Turkcapar, I.S. Zorbakir, C. Zorbilmez Middle East Technical University, Physics Department, Ankara, Turkey
B. Isildak , G. Karapinar , M. Yalvac Bogazici University, Istanbul, Turkey
I.O. Atakisi, E. G ¨ulmez, M. Kaya , O. Kaya , ¨O. ¨Ozc¸elik, S. Tekten , E.A. Yetkin Istanbul Technical University, Istanbul, Turkey
A. Cakir, K. Cankocak , Y. Komurcu, S. Sen Istanbul University, Istanbul, Turkey
S. Cerci , B. Kaynak, S. Ozkorucuklu, D. Sunar Cerci Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkov,Ukraine
B. Grynyov
National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine
L. Levchuk
University of Bristol, Bristol, United Kingdom
E. Bhal, S. Bologna, J.J. Brooke, D. Burns , E. Clement, D. Cussans, H. Flacher, J. Goldstein,G.P. Heath, H.F. Heath, L. Kreczko, B. Krikler, S. Paramesvaran, T. Sakuma, S. Seif El Nasr-Storey, V.J. Smith, J. Taylor, A. Titterton Rutherford Appleton Laboratory, Didcot, United Kingdom
K.W. Bell, A. Belyaev , C. Brew, R.M. Brown, D.J.A. Cockerill, J.A. Coughlan, K. Harder,S. Harper, J. Linacre, K. Manolopoulos, D.M. Newbold, E. Olaiya, D. Petyt, T. Reis, T. Schuh,C.H. Shepherd-Themistocleous, A. Thea, I.R. Tomalin, T. Williams Imperial College, London, United Kingdom
R. Bainbridge, P. Bloch, S. Bonomally, J. Borg, S. Breeze, O. Buchmuller, A. Bundock, GurpreetSingh CHAHAL , D. Colling, P. Dauncey, G. Davies, M. Della Negra, P. Everaerts, G. Hall,G. Iles, M. Komm, J. Langford, L. Lyons, A.-M. Magnan, S. Malik, A. Martelli, V. Milosevic,A. Morton, J. Nash , V. Palladino, M. Pesaresi, D.M. Raymond, A. Richards, A. Rose, E. Scott,C. Seez, A. Shtipliyski, M. Stoye, T. Strebler, A. Tapper, K. Uchida, T. Virdee , N. Wardle,S.N. Webb, D. Winterbottom, A.G. Zecchinelli, S.C. Zenz Brunel University, Uxbridge, United Kingdom
J.E. Cole, P.R. Hobson, A. Khan, P. Kyberd, C.K. Mackay, I.D. Reid, L. Teodorescu, S. Zahid
Baylor University, Waco, USA
A. Brinkerhoff, K. Call, B. Caraway, J. Dittmann, K. Hatakeyama, C. Madrid, B. McMaster,N. Pastika, C. Smith Catholic University of America, Washington, DC, USA
R. Bartek, A. Dominguez, R. Uniyal, A.M. Vargas Hernandez
The University of Alabama, Tuscaloosa, USA
A. Buccilli, S.I. Cooper, S.V. Gleyzer, C. Henderson, P. Rumerio, C. West
Boston University, Boston, USA
A. Albert, D. Arcaro, Z. Demiragli, D. Gastler, C. Richardson, J. Rohlf, D. Sperka, D. Spitzbart,I. Suarez, L. Sulak, D. Zou
Brown University, Providence, USA
G. Benelli, B. Burkle, X. Coubez , D. Cutts, Y.t. Duh, M. Hadley, U. Heintz, J.M. Hogan ,K.H.M. Kwok, E. Laird, G. Landsberg, K.T. Lau, J. Lee, M. Narain, S. Sagir , R. Syarif, E. Usai,W.Y. Wong, D. Yu, W. Zhang University of California, Davis, Davis, USA
R. Band, C. Brainerd, R. Breedon, M. Calderon De La Barca Sanchez, M. Chertok, J. Conway,R. Conway, P.T. Cox, R. Erbacher, C. Flores, G. Funk, F. Jensen, W. Ko † , O. Kukral, R. Lander,M. Mulhearn, D. Pellett, J. Pilot, M. Shi, D. Taylor, K. Tos, M. Tripathi, Z. Wang, F. Zhang University of California, Los Angeles, USA
M. Bachtis, C. Bravo, R. Cousins, A. Dasgupta, A. Florent, J. Hauser, M. Ignatenko, N. Mccoll,W.A. Nash, S. Regnard, D. Saltzberg, C. Schnaible, B. Stone, V. Valuev
University of California, Riverside, Riverside, USA
K. Burt, Y. Chen, R. Clare, J.W. Gary, S.M.A. Ghiasi Shirazi, G. Hanson, G. Karapostoli,O.R. Long, N. Manganelli, M. Olmedo Negrete, M.I. Paneva, W. Si, S. Wimpenny, B.R. Yates,Y. Zhang
University of California, San Diego, La Jolla, USA
J.G. Branson, P. Chang, S. Cittolin, S. Cooperstein, N. Deelen, M. Derdzinski, J. Duarte,R. Gerosa, D. Gilbert, B. Hashemi, D. Klein, V. Krutelyov, J. Letts, M. Masciovecchio, S. May,S. Padhi, M. Pieri, V. Sharma, M. Tadel, F. W ¨urthwein, A. Yagil, G. Zevi Della Porta
University of California, Santa Barbara - Department of Physics, Santa Barbara, USA
N. Amin, R. Bhandari, C. Campagnari, M. Citron, V. Dutta, J. Incandela, B. Marsh, H. Mei,A. Ovcharova, H. Qu, J. Richman, U. Sarica, D. Stuart, S. Wang
California Institute of Technology, Pasadena, USA
D. Anderson, A. Bornheim, O. Cerri, I. Dutta, J.M. Lawhorn, N. Lu, J. Mao, H.B. Newman,T.Q. Nguyen, J. Pata, M. Spiropulu, J.R. Vlimant, S. Xie, Z. Zhang, R.Y. Zhu
Carnegie Mellon University, Pittsburgh, USA
J. Alison, M.B. Andrews, T. Ferguson, T. Mudholkar, M. Paulini, M. Sun, I. Vorobiev,M. Weinberg
University of Colorado Boulder, Boulder, USA
J.P. Cumalat, W.T. Ford, E. MacDonald, T. Mulholland, R. Patel, A. Perloff, K. Stenson,K.A. Ulmer, S.R. Wagner
Cornell University, Ithaca, USA
J. Alexander, Y. Cheng, J. Chu, A. Datta, A. Frankenthal, K. Mcdermott, J.R. Patterson,D. Quach, A. Ryd, S.M. Tan, Z. Tao, J. Thom, P. Wittich, M. Zientek
Fermi National Accelerator Laboratory, Batavia, USA
S. Abdullin, M. Albrow, M. Alyari, G. Apollinari, A. Apresyan, A. Apyan, S. Banerjee, L.A.T. Bauerdick, A. Beretvas, D. Berry, J. Berryhill, P.C. Bhat, K. Burkett, J.N. Butler,A. Canepa, G.B. Cerati, H.W.K. Cheung, F. Chlebana, M. Cremonesi, V.D. Elvira, J. Freeman,Z. Gecse, E. Gottschalk, L. Gray, D. Green, S. Gr ¨unendahl, O. Gutsche, J. Hanlon,R.M. Harris, S. Hasegawa, R. Heller, J. Hirschauer, B. Jayatilaka, S. Jindariani, M. Johnson,U. Joshi, T. Klijnsma, B. Klima, M.J. Kortelainen, B. Kreis, S. Lammel, J. Lewis, D. Lincoln,R. Lipton, M. Liu, T. Liu, J. Lykken, K. Maeshima, J.M. Marraffino, D. Mason, P. McBride,P. Merkel, S. Mrenna, S. Nahn, V. O’Dell, V. Papadimitriou, K. Pedro, C. Pena , F. Ravera,A. Reinsvold Hall, L. Ristori, B. Schneider, E. Sexton-Kennedy, N. Smith, A. Soha, W.J. Spalding,L. Spiegel, S. Stoynev, J. Strait, L. Taylor, S. Tkaczyk, N.V. Tran, L. Uplegger, E.W. Vaandering,R. Vidal, M. Wang, H.A. Weber, A. Woodard University of Florida, Gainesville, USA
D. Acosta, P. Avery, D. Bourilkov, L. Cadamuro, V. Cherepanov, F. Errico, R.D. Field,D. Guerrero, B.M. Joshi, M. Kim, J. Konigsberg, A. Korytov, K.H. Lo, K. Matchev, N. Menendez,G. Mitselmakher, D. Rosenzweig, K. Shi, J. Wang, S. Wang, X. Zuo
Florida International University, Miami, USA
Y.R. Joshi
Florida State University, Tallahassee, USA
T. Adams, A. Askew, S. Hagopian, V. Hagopian, K.F. Johnson, R. Khurana, T. Kolberg,G. Martinez, T. Perry, H. Prosper, C. Schiber, R. Yohay, J. Zhang
Florida Institute of Technology, Melbourne, USA
M.M. Baarmand, M. Hohlmann, D. Noonan, M. Rahmani, M. Saunders, F. Yumiceva
University of Illinois at Chicago (UIC), Chicago, USA
M.R. Adams, L. Apanasevich, R.R. Betts, R. Cavanaugh, X. Chen, S. Dittmer, O. Evdokimov,C.E. Gerber, D.A. Hangal, D.J. Hofman, V. Kumar, C. Mills, G. Oh, T. Roy, M.B. Tonjes,N. Varelas, J. Viinikainen, H. Wang, X. Wang, Z. Wu
The University of Iowa, Iowa City, USA
M. Alhusseini, B. Bilki , K. Dilsiz , S. Durgut, R.P. Gandrajula, M. Haytmyradov,V. Khristenko, O.K. K ¨oseyan, J.-P. Merlo, A. Mestvirishvili , A. Moeller, J. Nachtman,H. Ogul , Y. Onel, F. Ozok , A. Penzo, C. Snyder, E. Tiras, J. Wetzel, K. Yi Johns Hopkins University, Baltimore, USA
B. Blumenfeld, A. Cocoros, N. Eminizer, A.V. Gritsan, W.T. Hung, S. Kyriacou, P. Maksimovic,C. Mantilla, J. Roskes, M. Swartz, T. ´A. V´ami
The University of Kansas, Lawrence, USA
C. Baldenegro Barrera, P. Baringer, A. Bean, S. Boren, A. Bylinkin, T. Isidori, S. Khalil, J. King,G. Krintiras, A. Kropivnitskaya, C. Lindsey, D. Majumder, W. Mcbrayer, N. Minafra, M. Murray,C. Rogan, C. Royon, S. Sanders, E. Schmitz, J.D. Tapia Takaki, Q. Wang, J. Williams, G. Wilson
Kansas State University, Manhattan, USA
S. Duric, A. Ivanov, K. Kaadze, D. Kim, Y. Maravin, D.R. Mendis, T. Mitchell, A. Modak,A. Mohammadi
Lawrence Livermore National Laboratory, Livermore, USA
F. Rebassoo, D. Wright
University of Maryland, College Park, USA
A. Baden, O. Baron, A. Belloni, S.C. Eno, Y. Feng, N.J. Hadley, S. Jabeen, G.Y. Jeng, R.G. Kellogg,A.C. Mignerey, S. Nabili, M. Seidel, A. Skuja, S.C. Tonwar, L. Wang, K. Wong Massachusetts Institute of Technology, Cambridge, USA
D. Abercrombie, B. Allen, R. Bi, S. Brandt, W. Busza, I.A. Cali, M. D’Alfonso,G. Gomez Ceballos, M. Goncharov, P. Harris, D. Hsu, M. Hu, M. Klute, D. Kovalskyi, Y.-J. Lee,P.D. Luckey, B. Maier, A.C. Marini, C. Mcginn, C. Mironov, S. Narayanan, X. Niu, C. Paus,D. Rankin, C. Roland, G. Roland, Z. Shi, G.S.F. Stephans, K. Sumorok, K. Tatar, D. Velicanu,J. Wang, T.W. Wang, B. Wyslouch
University of Minnesota, Minneapolis, USA
R.M. Chatterjee, A. Evans, S. Guts † , P. Hansen, J. Hiltbrand, Sh. Jain, Y. Kubota, Z. Lesko,J. Mans, M. Revering, R. Rusack, R. Saradhy, N. Schroeder, N. Strobbe, M.A. Wadud University of Mississippi, Oxford, USA
J.G. Acosta, S. Oliveros
University of Nebraska-Lincoln, Lincoln, USA
K. Bloom, S. Chauhan, D.R. Claes, C. Fangmeier, L. Finco, F. Golf, R. Kamalieddin,I. Kravchenko, J.E. Siado, G.R. Snow † , B. Stieger, W. Tabb State University of New York at Buffalo, Buffalo, USA
G. Agarwal, C. Harrington, I. Iashvili, A. Kharchilava, C. McLean, D. Nguyen, A. Parker,J. Pekkanen, S. Rappoccio, B. Roozbahani
Northeastern University, Boston, USA
G. Alverson, E. Barberis, C. Freer, Y. Haddad, A. Hortiangtham, G. Madigan, B. Marzocchi,D.M. Morse, V. Nguyen, T. Orimoto, L. Skinnari, A. Tishelman-Charny, T. Wamorkar, B. Wang,A. Wisecarver, D. Wood
Northwestern University, Evanston, USA
S. Bhattacharya, J. Bueghly, G. Fedi, A. Gilbert, T. Gunter, K.A. Hahn, N. Odell, M.H. Schmitt,K. Sung, M. Velasco
University of Notre Dame, Notre Dame, USA
R. Bucci, N. Dev, R. Goldouzian, M. Hildreth, K. Hurtado Anampa, C. Jessop, D.J. Karmgard,K. Lannon, W. Li, N. Loukas, N. Marinelli, I. Mcalister, F. Meng, Y. Musienko , R. Ruchti,P. Siddireddy, G. Smith, S. Taroni, M. Wayne, A. Wightman, M. Wolf The Ohio State University, Columbus, USA
J. Alimena, B. Bylsma, B. Cardwell, L.S. Durkin, B. Francis, C. Hill, W. Ji, A. Lefeld, T.Y. Ling,B.L. Winer
Princeton University, Princeton, USA
G. Dezoort, P. Elmer, J. Hardenbrook, N. Haubrich, S. Higginbotham, A. Kalogeropoulos,S. Kwan, D. Lange, M.T. Lucchini, J. Luo, D. Marlow, K. Mei, I. Ojalvo, J. Olsen, C. Palmer,P. Pirou´e, D. Stickland, C. Tully
University of Puerto Rico, Mayaguez, USA
S. Malik, S. Norberg
Purdue University, West Lafayette, USA
A. Barker, V.E. Barnes, R. Chawla, S. Das, L. Gutay, M. Jones, A.W. Jung, B. Mahakud,D.H. Miller, G. Negro, N. Neumeister, C.C. Peng, S. Piperov, H. Qiu, J.F. Schulte, N. Trevisani,F. Wang, R. Xiao, W. Xie
Purdue University Northwest, Hammond, USA
T. Cheng, J. Dolen, N. Parashar Rice University, Houston, USA
A. Baty, U. Behrens, S. Dildick, K.M. Ecklund, S. Freed, F.J.M. Geurts, M. Kilpatrick,Arun Kumar, W. Li, B.P. Padley, R. Redjimi, J. Roberts, J. Rorie, W. Shi, A.G. Stahl Leiton, Z. Tu,A. Zhang
University of Rochester, Rochester, USA
A. Bodek, P. de Barbaro, R. Demina, J.L. Dulemba, C. Fallon, T. Ferbel, M. Galanti, A. Garcia-Bellido, O. Hindrichs, A. Khukhunaishvili, E. Ranken, R. Taus
Rutgers, The State University of New Jersey, Piscataway, USA
B. Chiarito, J.P. Chou, A. Gandrakota, Y. Gershtein, E. Halkiadakis, A. Hart, M. Heindl,E. Hughes, S. Kaplan, I. Laflotte, A. Lath, R. Montalvo, K. Nash, M. Osherson, S. Salur,S. Schnetzer, S. Somalwar, R. Stone, S. Thomas
University of Tennessee, Knoxville, USA
H. Acharya, A.G. Delannoy, S. Spanier
Texas A&M University, College Station, USA
O. Bouhali , M. Dalchenko, M. De Mattia, A. Delgado, R. Eusebi, J. Gilmore, T. Huang,T. Kamon , H. Kim, S. Luo, S. Malhotra, D. Marley, R. Mueller, D. Overton, L. Perni`e,D. Rathjens, A. Safonov Texas Tech University, Lubbock, USA
N. Akchurin, J. Damgov, F. De Guio, V. Hegde, S. Kunori, K. Lamichhane, S.W. Lee, T. Mengke,S. Muthumuni, T. Peltola, S. Undleeb, I. Volobouev, Z. Wang, A. Whitbeck
Vanderbilt University, Nashville, USA
S. Greene, A. Gurrola, R. Janjam, W. Johns, C. Maguire, A. Melo, H. Ni, K. Padeken, F. Romeo,P. Sheldon, S. Tuo, J. Velkovska, M. Verweij
University of Virginia, Charlottesville, USA
M.W. Arenton, P. Barria, B. Cox, G. Cummings, J. Hakala, R. Hirosky, M. Joyce, A. Ledovskoy,C. Neu, B. Tannenwald, Y. Wang, E. Wolfe, F. Xia
Wayne State University, Detroit, USA
R. Harr, P.E. Karchin, N. Poudyal, J. Sturdy, P. Thapa
University of Wisconsin - Madison, Madison, WI, USA
K. Black, T. Bose, J. Buchanan, C. Caillol, D. Carlsmith, S. Dasu, I. De Bruyn, L. Dodd,C. Galloni, H. He, M. Herndon, A. Herv´e, U. Hussain, A. Lanaro, A. Loeliger, R. Loveless,J. Madhusudanan Sreekala, A. Mallampalli, D. Pinna, T. Ruggles, A. Savin, V. Sharma,W.H. Smith, D. Teague, S. Trembath-reichert†: Deceased1: Also at Vienna University of Technology, Vienna, Austria2: Also at Universit´e Libre de Bruxelles, Bruxelles, Belgium3: Also at IRFU, CEA, Universit´e Paris-Saclay, Gif-sur-Yvette, France4: Also at Universidade Estadual de Campinas, Campinas, Brazil5: Also at Federal University of Rio Grande do Sul, Porto Alegre, Brazil6: Also at UFMS, Nova Andradina, Brazil7: Also at Universidade Federal de Pelotas, Pelotas, Brazil8: Also at University of Chinese Academy of Sciences, Beijing, China9: Also at Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of NRC‘Kurchatov Institute’, Moscow, Russia
10: Also at Joint Institute for Nuclear Research, Dubna, Russia11: Also at Fayoum University, El-Fayoum, Egypt12: Now at British University in Egypt, Cairo, Egypt13: Also at Purdue University, West Lafayette, USA14: Also at Universit´e de Haute Alsace, Mulhouse, France15: Also at Tbilisi State University, Tbilisi, Georgia16: Also at Erzincan Binali Yildirim University, Erzincan, Turkey17: Also at CERN, European Organization for Nuclear Research, Geneva, Switzerland18: Also at RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany19: Also at University of Hamburg, Hamburg, Germany20: Also at Brandenburg University of Technology, Cottbus, Germany21: Also at Institute of Physics, University of Debrecen, Debrecen, Hungary, Debrecen,Hungary22: Also at Institute of Nuclear Research ATOMKI, Debrecen, Hungary23: Also at MTA-ELTE Lend ¨ulet CMS Particle and Nuclear Physics Group, E ¨otv ¨os Lor´andUniversity, Budapest, Hungary, Budapest, Hungary24: Also at IIT Bhubaneswar, Bhubaneswar, India, Bhubaneswar, India25: Also at Institute of Physics, Bhubaneswar, India26: Also at G.H.G. Khalsa College, Punjab, India27: Also at Shoolini University, Solan, India28: Also at University of Hyderabad, Hyderabad, India29: Also at University of Visva-Bharati, Santiniketan, India30: Now at INFN Sezione di Bari a , Universit`a di Bari b , Politecnico di Bari c , Bari, Italy31: Also at Italian National Agency for New Technologies, Energy and Sustainable EconomicDevelopment, Bologna, Italy32: Also at Centro Siciliano di Fisica Nucleare e di Struttura Della Materia, Catania, Italy33: Also at Riga Technical University, Riga, Latvia, Riga, Latvia34: Also at Malaysian Nuclear Agency, MOSTI, Kajang, Malaysia35: Also at Consejo Nacional de Ciencia y Tecnolog´ıa, Mexico City, Mexico36: Also at Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland37: Also at Institute for Nuclear Research, Moscow, Russia38: Now at National Research Nuclear University ’Moscow Engineering Physics Institute’(MEPhI), Moscow, Russia39: Also at Institute of Nuclear Physics of the Uzbekistan Academy of Sciences, Tashkent,Uzbekistan40: Also at St. Petersburg State Polytechnical University, St. Petersburg, Russia41: Also at University of Florida, Gainesville, USA42: Also at Imperial College, London, United Kingdom43: Also at P.N. Lebedev Physical Institute, Moscow, Russia44: Also at Budker Institute of Nuclear Physics, Novosibirsk, Russia45: Also at Faculty of Physics, University of Belgrade, Belgrade, Serbia46: Also at Universit`a degli Studi di Siena, Siena, Italy, Siena, Italy47: Also at INFN Sezione di Pavia a , Universit`a di Pavia b , Pavia, Italy, Pavia, Italy48: Also at National and Kapodistrian University of Athens, Athens, Greece49: Also at Universit¨at Z ¨urich, Zurich, Switzerland50: Also at Stefan Meyer Institute for Subatomic Physics, Vienna, Austria, Vienna, Austria51: Also at Burdur Mehmet Akif Ersoy University, BURDUR, Turkey52: Also at S¸ ırnak University, Sirnak, Turkey53: Also at Department of Physics, Tsinghua University, Beijing, China, Beijing, China7