Search for narrow resonances decaying to dijets in proton-proton collisions at sqrt(s) = 13 TeV
EEUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH (CERN)
CERN-PH-EP/2013-0372016/02/22
CMS-EXO-15-001
Search for narrow resonances decaying to dijets inproton-proton collisions at √ s =
13 TeV
The CMS Collaboration ∗ Abstract
A search for narrow resonances in proton-proton collisions at √ s =
13 TeV is pre-sented. The invariant mass distribution of the two leading jets is measured with theCMS detector using a data set corresponding to an integrated luminosity of 2.4 fb − .The highest observed dijet mass is 6.1 TeV. The distribution is smooth and no evi-dence for resonant particles is observed. Upper limits at 95% confidence level areset on the production cross section for narrow resonances with masses above 1.5 TeV.When interpreted in the context of specific models, the limits exclude string reso-nances with masses below 7.0 TeV, scalar diquarks below 6.0 TeV, axigluons and col-orons below 5.1 TeV, excited quarks below 5.0 TeV, color-octet scalars below 3.1 TeV,and W (cid:48) bosons below 2.6 TeV. These results significantly extend previously publishedlimits. Published in Physical Review Letters as doi:10.1103/PhysRevLett.116.071801. c (cid:13) ∗ See Appendix A for the list of collaboration members a r X i v : . [ h e p - e x ] F e b Deep inelastic proton-proton (pp) collisions often produce two or more energetic jets when theconstituent partons are scattered with large transverse momenta ( p T ). The invariant mass m jj of the pair of jets having the largest values of p T in the event (the dijet) has a spectrum thatis predicted by quantum chromodynamics (QCD) to fall steeply and smoothly with increasingdijet mass [1, 2]. Many extensions of the standard model predict the existence of new massiveparticles that couple to quarks (q) and gluons (g) and can be detected as resonances in the dijetmass spectrum. In this Letter, we report a search for narrow resonances, those with naturalwidths that are small compared to the experimental resolution. The search uses the dijet massspectrum measured with the CMS detector at a center-of-mass energy of √ s =
13 TeV. Thedata correspond to an integrated luminosity of 2.4 fb − from the 2015 running of the CERNLHC (Run 2).The most stringent current bounds on dijet resonance production have been presented by theCMS [3–7] and ATLAS [8–12] Collaborations, using proton-proton collisions at √ s = √ s =
13 TeV [14]. We present a model-independent search and, inaddition, consider the following models of s -channel dijet resonances: string resonances [15,16], scalar diquarks [17], axigluons [18, 19], colorons [19, 20], excited quarks (q ∗ ) [21, 22], color-octet scalars [23], new gauge bosons (W (cid:48) and Z (cid:48) ) [24], and Randall–Sundrum (RS) gravitons(G) [25]. More details on the specific choices of couplings for these models can be found inRef. [5].The CMS detector and its coordinate system, including the azimuthal angle φ (in radians) andthe pseudorapidity η , are described in detail in Ref. [26]. Events are selected using a two-tiertrigger system. Events satisfying loose jet requirements at the first level (L1) are examined bythe high-level trigger (HLT), where jets are clustered from particle-flow (PF) [27, 28] candidates,discussed in the next paragraph. The jets with p T >
40 GeV and | η | < H T , the scalar sum of the jet p T . Events are accepted if they have H T >
800 GeV or include ajet with p T >
500 GeV. At least one reconstructed vertex is required with | z | <
24 cm. Theprimary vertex is defined as the vertex with the highest sum of p of the associated tracks.The PF algorithm is used to reconstruct the particles in an event and to identify them as muons,electrons (with associated Bremsstrahlung photons), photons (unconverted and converted intoe + e − pairs), and either charged or neutral hadrons. These PF candidates are clustered into jetsusing the anti- k t algorithm [29] with a distance parameter of 0.4, implemented in the F AST J ET package [30]. Charged PF candidates not originating from the primary vertex are removedprior to the jet finding. An event-by-event jet-area-based correction [31–33] is applied to thejets to remove the estimated energy from additional collisions in the same or adjacent bunchcrossings (pileup). The jet momenta and energies are further corrected using calibration con-stants obtained from simulation, test beam results, and pp collision data at √ s =
13 TeV, usingmethods described in Ref. [33] with all in situ calibrations obtained from the current data. Alljets are required to have p T >
30 GeV and | η | < p T are definedas the leading jets. Jet identification criteria [34] are applied to remove spurious jets associatedwith calorimeter noise. An event is rejected if either of the two leading jets does not satisfy thejet identification criteria.Geometrically close jets are combined into “wide jets” and used to determine the dijet mass,as in our previous searches [4–7]. The wide-jet algorithm, designed for dijet resonance eventreconstruction, reduces the analysis sensitivity to gluon radiation from the final state par- tons. The two leading jets are used as seeds and the four-vectors of all other jets, if within ∆ R = √ ( ∆ η ) + ( ∆ φ ) < t -channel dijet events is suppressedby requiring the pseudorapidity separation of the two wide jets to satisfy | ∆ η jj | < √ s =
13 TeV. Weselect events with m jj > [ pb / T e V ] jj / d m s d - - -
10 110 DataFitQCD MCColor-octet scalar (3.1 TeV)Excited quark (5.0 TeV)Scalar diquark (6.0 TeV)
Wide jets | < 1.3 jj hD | < 2.5, | h | (13 TeV) -1 CMS
Dijet mass [TeV] s t a t s ( D a t a - F i t ) - - - Figure 1: Dijet mass spectrum (points) compared to a fitted parameterization (solid curve) andto the prediction of the
PYTHIA compared with a leading-order QCD Monte Carlo (MC) prediction from the
PYTHIA
EANT
PYTHIA simulation uses the NNPDF2.3LO [39] parton distributionfunctions (PDF). The renormalization and factorization scales are both set at the p T value of thehard-scattered partons. The MC prediction is normalized to the integrated contents of the datain Fig. 1, requiring multiplication of the predicted cross section by a factor of 0.88.To test the smoothness of the measured dijet mass spectrum, we fit the data with the parame-terization d σ d m jj = P ( − x ) P x P + P ln ( x ) , (1)where x = m jj / √ s and P , P , P , and P are fitted parameters. This functional form was alsoused in previous searches [3–12, 40] to describe the data and the QCD predictions. In Fig. 1 weshow the result of the binned maximum likelihood fit, which yields χ =
31 for 35 degrees offreedom, where the χ is determined using the Poisson uncertainties shown in Fig. 1. The dataare seen to be well described by the fit.We search in the dijet mass spectrum for narrow resonances. Figure 2 shows example dijetmass distributions for simulated signal events, generated with the PYTHIA ± Dijet mass [TeV] N o r m a li z ed y i e l d / T e V quark-quarkquark-gluongluon-gluon CMS
Simulation = 13 TeVsWide jets|<1.3 jj hD |<2.5, | h | Figure 2: The reconstructed resonance mass spectrum predicted by the
PYTHIA → G → qq (solid), for quark-gluonprocesses modeled by qg → q ∗ → qg (dotted), and for gluon-gluon processes modeled bygg → G → gg (dashed), where G is a RS graviton and q ∗ is an excited quark. the integrated luminosity is 12%, and is propagated to the normalization of the signal. Notincluded in this analysis is a recent re-evaluation of the integrated luminosity that increases themeasured value by 4.3% and reduces the systematic uncertainty to 4.6%. Changes in the valuesof the parameters describing the background introduce a change in the signal strength that isaccounted for as a systematic uncertainty. The dependence of the signal mass distributions onthe number of pileup interactions is negligible.To set upper limits on signal cross sections we use a Bayesian formalism [42] with a uniformprior for a positive signal cross section; log-normal priors are used to model systematic uncer-tainties in the jet energy scale, jet energy resolution, and integrated luminosity, all treated asnuisance parameters to be integrated over. We calculate the likelihood, namely the posteriorprobability density as a function of resonance cross section, independently at each value of res-onance pole mass from 1.5 to 7.2 TeV in 0.1 TeV steps. Resonances with masses less than 1.5 TeVare too close to the lower edge of our dijet mass spectrum to produce a peak distinguishablefrom the background and are therefore not considered. Examples of the resonance shapes usedare shown in Fig. 2. The data are fitted with the background function plus a signal shape, withthe signal cross section a fitted parameter. The resulting fitting function, with the signal crosssection set to zero, is used as the background estimate. The likelihood is formed using as in-put the data, the background estimate from the best fit of the signal+background hypothesis tothe data, and the resonance shape multiplied by the resonance cross section. The uncertaintyin the background is incorporated through marginalization, i.e., by integrating the likelihoodover the background parameters using uniform priors. The integration is performed for eachof the background nuisance parameters in a range around the best-fit values, correspondingto a decrease in the likelihood by a factor of 1000 from its maximum value for each parameterindependently.Figure 3 shows the model-independent observed upper limits at 95% confidence level (CL) on σ B A , i.e., the product of the cross section ( σ ), the branching fraction ( B ), and the acceptance ( A )for the kinematic requirements | ∆ η jj | < | η | < m jj > A . Figure 3 also shows the expectedlimits on the cross section and their bands of uncertainty. The expected limits are estimatedwith pseudo-experiments generated using background-only hypotheses. The generated massspectra are fit with a background+signal model to extract expected upper limits. The differencein the limits for qq, qg, and gg resonances at the same resonance mass originates from thedifference in their lineshapes. All upper limits presented are compared to the parton-levelpredictions of σ B A , without detector simulation, to determine mass limits on new particles.The model predictions shown in Fig. 3 are calculated in the narrow-width approximation [13]using the CTEQ6L1 [43] PDF at leading order, with a next-to-leading order correction factorof approximately 1.3 included for the W (cid:48) and Z (cid:48) models [44], and approximately 1.2 for theaxigluon and coloron models [19]. The branching fraction B includes the direct decays of theresonance into qq, qg, and gg only, excluding top quarks, and no other decays giving jets areconsidered in the theoretical calculation of the model cross section. The acceptance is evaluatedat the parton level for the resonance decay to two partons. In the case of isotropic decays it is A ≈ qq resonance mass [TeV] [ pb ] AB σ -3 -2 -1
95% CL upper limitsObservedExpected 1 std. deviation ± ± Scalar diquarkAxigluon/coloronW’Z’ (13 TeV) -1 CMS qg resonance mass [TeV] [ pb ] AB σ -3 -2 -1
95% CL upper limitsObservedExpected 1 std. deviation ± ± StringExcited quark (13 TeV) -1 CMS gg resonance mass [TeV] [ pb ] AB σ -3 -2 -1
95% CL upper limitsObservedExpected 1 std. deviation ± ± Color-octet scalar (13 TeV) -1 CMS
Resonance mass [TeV] [ pb ] AB σ -3 -2 -1
95% CL upper limitsgluon-gluonquark-gluonquark-quarkStringScalar diquarkExcited quarkAxigluon/coloronColor-octet scalarW’Z’RS graviton (13 TeV) -1 CMS
Figure 3: The observed 95% CL upper limits on the product of the cross section, branchingfraction, and acceptance for quark-quark (top left), quark-gluon (top right), and gluon-gluon(bottom left) type dijet resonances, shown as symbols connected by solid curves, and a com-parison of all types (bottom right). The corresponding expected limits (dash-dotted curves)and their variation at the 1 and 2 standard deviation levels (shaded bands) are also shown.The limits are compared to the predicted cross sections of string resonances [15, 16], scalar di-quarks [17], excited quarks [21, 22], axigluons [18, 19], colorons [19, 20], color-octet scalars [23],new gauge bosons W (cid:48) and Z (cid:48) [24], and RS gravitons [25]. extends the previous CMS limit of 4.7 TeV; for axigluons and colorons, the observed mass limitof 5.1 TeV extends the previous CMS limit of 3.6 TeV; for excited quarks, we set a mass limitof 5.0 TeV compared to the ATLAS limit of 4.06 TeV; for a color-octet scalar, the observed masslimit of 3.1 TeV improves the ATLAS limit of 2.70 TeV; and for a W (cid:48) boson, we exclude massesup to 2.6 TeV, just beyond the ATLAS limit of 2.45 TeV. With the current data sample we can-not set mass limits on Z (cid:48) bosons with standard-model-like couplings or on RS gravitons withdimensionless coupling less than 0.1.In summary, a search for narrow resonances decaying into a pair of jets has been performedusing a data sample of pp collisions at √ s =
13 TeV corresponding to an integrated luminosityof 2.4 fb − . The dijet mass spectrum has been measured to be a smoothly falling distribution.In the analyzed data sample, there is no evidence for resonant particle production. We presentgeneric upper limits on the product σ B A that are applicable to any model of narrow dijet reso-nance production. This search is more sensitive than previous searches for dijet resonances formasses above 2 TeV. We set the most stringent limits to date on the masses of string resonances,scalar diquarks, axigluons, colorons, excited quarks, color-octet scalars, and W (cid:48) bosons.Table 1: Observed and expected mass limits for analyses that exclude the listed models at95% CL for a resonance mass from 1.5 TeV up to the indicated values.Model Final Obs. Mass Exp. MassState Limit [TeV] Limit [TeV]String qg 7.0 6.9Scalar diquark qq 6.0 6.1Axigluon/coloron qq 5.1 5.1Excited quark (q ∗ ) qg 5.0 4.8Color-octet scalar gg 3.1 3.3Heavy W (W (cid:48) ) qq 2.6 2.3 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 Gridfor delivering so effectively the computing infrastructure essential to our analyses. Finally, weacknowledge the enduring support for the construction and operation of the LHC and the CMSdetector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS andFWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS,MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus);MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA andCNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH(Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Re-public of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP,and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland);FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia);SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter,IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine);STFC (United Kingdom); DOE and NSF (USA).
References
References [1] CMS Collaboration, “Measurement of the differential dijet production cross section inproton-proton collisions at √ s = Phys. Lett. B (2011) 187, doi:10.1016/j.physletb.2011.05.027 , arXiv:1104.1693 .[2] ATLAS Collaboration, “Measurement of dijet cross sections in pp collisions at 7 TeVcentre-of-mass energy using the ATLAS detector”, JHEP (2014) 059, doi:10.1007/JHEP05(2014)059 , arXiv:1312.3524 .[3] CMS Collaboration, “Search for Dijet Resonances in 7 TeV pp Collisions at CMS”, Phys.Rev. Lett. (2010) 211801, doi:10.1103/PhysRevLett.105.211801 , arXiv:1010.0203 . [Erratum doi:10.1103/PhysRevLett.106.029902 ].[4] CMS Collaboration, “Search for resonances in the dijet mass spectrum from 7 TeV ppcollisions at CMS”, Phys. Lett. B (2011) 123, doi:10.1016/j.physletb.2011.09.015 , arXiv:1107.4771 .[5] CMS Collaboration, “Search for narrow resonances and quantum black holes in inclusiveand b -tagged dijet mass spectra from pp collisions at √ s = JHEP (2013) 013, doi:10.1007/JHEP01(2013)013 , arXiv:1210.2387 .[6] CMS Collaboration, “Search for narrow resonances using the dijet mass spectrum in pp collisions at √ s = 8 TeV”, Phys. Rev. D (2013) 114015, doi:10.1103/PhysRevD.87.114015 , arXiv:1302.4794 .[7] CMS Collaboration, “Search for resonances and quantum black holes using dijet massspectra in proton-proton collisions at √ s = Phys. Rev. D (2015) 052009, doi:10.1103/PhysRevD.91.052009 , arXiv:1501.04198 .[8] ATLAS Collaboration, “Search for New Particles in Two-Jet Final States in 7 TeVProton-Proton Collisions with the ATLAS Detector at the LHC”, Phys. Rev. Lett. (2010) 161801, doi:10.1103/PhysRevLett.105.161801 , arXiv:1008.2461 .[9] ATLAS Collaboration, “Search for new physics in dijet mass and angular distributions in pp collisions at √ s = New J. Phys. (2011)053044, doi:10.1088/1367-2630/13/5/053044 , arXiv:1103.3864 .[10] ATLAS Collaboration, “Search for new physics in the dijet mass distribution using 1 fb − of pp collision data at √ s = 7 TeV collected by the ATLAS detector”, Phys. Lett. B (2012) 37, doi:10.1016/j.physletb.2012.01.035 , arXiv:1108.6311 .[11] ATLAS Collaboration, “ATLAS search for new phenomena in dijet mass and angulardistributions using pp collisions at √ s = JHEP (2013) 029, doi:10.1007/JHEP01(2013)029 , arXiv:1210.1718 .[12] ATLAS Collaboration, “Search for new phenomena in the dijet mass distribution using pp collision data at √ s = Phys. Rev. D (2015) 052007, doi:10.1103/PhysRevD.91.052007 , arXiv:1407.1376 .[13] R. M. Harris and K. Kousouris, “Searches for dijet resonances at hadron colliders”, Int. J.Mod. Phys. A (2011) 5005, doi:10.1142/S0217751X11054905 , arXiv:1110.5302 . eferences [14] ATLAS Collaboration, “Search for New Phenomena in Dijet Mass and AngularDistributions from pp Collisions at √ s = 13 TeV with the ATLAS Detector”, (2015). arXiv:1512.01530 . Submitted to Phys. Lett. B.[15] L. A. Anchordoqui et al., “Dijet Signals for Low Mass Strings at the LHC”, Phys. Rev. Lett. (2008) 241803, doi:10.1103/PhysRevLett.101.241803 , arXiv:0808.0497 .[16] S. Cullen, M. Perelstein, and M. E. Peskin, “TeV strings and collider probes of large extradimensions”, Phys. Rev. D (2000) 055012, doi:10.1103/PhysRevD.62.055012 , arXiv:hep-ph/0001166 .[17] J. L. Hewett and T. G. Rizzo, “Low-energy phenomenology of superstring-inspired E(6)models”, Phys. Rept. (1989) 193, doi:10.1016/0370-1573(89)90071-9 .[18] P. H. Frampton and S. L. Glashow, “Chiral Color: An Alternative to the Standard Model”,
Phys. Lett. B (1987) 157, doi:10.1016/0370-2693(87)90859-8 .[19] R. S. Chivukula, E. H. Simmons, A. Farzinnia, and J. Ren, “Hadron collider production ofmassive color-octet vector bosons at next-to-leading order”,
Phys. Rev. D (2013)094011, doi:10.1103/PhysRevD.87.094011 , arXiv:1303.1120 .[20] E. H. Simmons, “Coloron phenomenology”, Phys. Rev. D (1997) 1678, doi:10.1103/PhysRevD.55.1678 , arXiv:hep-ph/9608269 .[21] U. Baur, I. Hinchliffe, and D. Zeppenfeld, “Excited Quark Production at HadronColliders”, Int. J. Mod. Phys. A (1987) 1285, doi:10.1142/S0217751X87000661 .[22] U. Baur, M. Spira, and P. M. Zerwas, “Excited quark and lepton production at hadroncolliders”, Phys. Rev. D (1990) 815, doi:10.1103/PhysRevD.42.815 .[23] T. Han, I. Lewis, and Z. Liu, “Colored resonant signals at the LHC: largest rate andsimplest topology”, JHEP (2010) 085, doi:10.1007/JHEP12(2010)085 , arXiv:1010.4309 .[24] E. Eichten, I. Hinchliffe, K. D. Lane, and C. Quigg, “Supercollider physics”, Rev. Mod.Phys. (1984) 579, doi:10.1103/RevModPhys.56.579 .[25] L. Randall and R. Sundrum, “An Alternative to compactification”, Phys. Rev. Lett. (1999) 4690, doi:10.1103/PhysRevLett.83.4690 , arXiv:hep-th/9906064 .[26] CMS Collaboration, “The CMS experiment at the CERN LHC”, JINST (2008) S08004, doi:10.1088/1748-0221/3/08/S08004 .[27] CMS Collaboration, “Particle–Flow Event Reconstruction in CMS and Performance forJets, Taus, and E missT ”, CMS Physics Analysis Summary CMS-PAS-PFT-09-001, 2009.[28] CMS Collaboration, “Commissioning of the Particle-flow Event Reconstruction with thefirst LHC collisions recorded in the CMS detector”, CMS Physics Analysis SummaryCMS-PAS-PFT-10-001, 2010.[29] M. Cacciari, G. P. Salam, and G. Soyez, “The Anti- k t jet clustering algorithm”, JHEP (2008) 063, doi:10.1088/1126-6708/2008/04/063 , arXiv:0802.1189 .[30] M. Cacciari and G. P. Salam, “Dispelling the N myth for the k t jet-finder”, Phys. Lett. B (2006) 57, doi:10.1016/j.physletb.2006.08.037 , arXiv:hep-ph/0512210 . References [31] M. Cacciari, G. P. Salam, and G. Soyez, “FastJet user manual”,
Eur. Phys. J. C (2012)1896, doi:10.1140/epjc/s10052-012-1896-2 , arXiv:1111.6097 .[32] M. Cacciari and G. P. Salam, “Pileup subtraction using jet areas”, Phys. Lett. B (2008)119, doi:10.1016/j.physletb.2007.09.077 , arXiv:0707.1378 .[33] CMS Collaboration, “Determination of jet energy calibration and transverse momentumresolution in CMS”, JINST (2011) P11002, doi:10.1088/1748-0221/6/11/P11002 , arXiv:1107.4277 .[34] CMS Collaboration, “Jet Performance in pp Collisions at √ s = Comp.Phys. Comm. (2008) 852, doi:10.1016/j.cpc.2008.01.036 , arXiv:0710.3820 .[36] CMS Collaboration, “Event generator tunes obtained from underlying event andmultiparton scattering measurements”, (2015). arXiv:1512.00815 . Submitted to Eur.Phys. J. C.[37] P. Skands, S. Carrazza, and J. Rojo, “Tuning PYTHIA 8.1: the Monash 2013 tune”, Eur.Phys. J. C (2014) 3024, doi:10.1140/epjc/s10052-014-3024-y , arXiv:1404.5630 .[38] GEANT4 Collaboration, “GEANT4—a simulation toolkit”, Nucl. Instrum. Meth. A (2003) 250, doi:10.1016/S0168-9002(03)01368-8 .[39] NNPDF Collaboration, “Parton distributions with LHC data”,
Nucl. Phys. B (2013)244, doi:10.1016/j.nuclphysb.2012.10.003 , arXiv:1207.1303 .[40] CDF Collaboration, “Search for new particles decaying into dijets in proton-antiprotoncollisions at √ s = Phys. Rev. D (2009) 112002, doi:10.1103/PhysRevD.79.112002 , arXiv:0812.4036 .[41] CMS Collaboration, “CMS Luminosity Based on Pixel Cluster Counting - Summer 2013Update”, CMS Physics Analysis Summary CMS-PAS-LUM-13-001, (2013).[42] Particle Data Group Collaboration, “Review of Particle Physics”, Chin. Phys. C (2014)090001, doi:10.1088/1674-1137/38/9/090001 .[43] J. Pumplin et al., “New generation of parton distributions with uncertainties from globalQCD analysis”, JHEP (2002) 012, doi:10.1088/1126-6708/2002/07/012 , arXiv:hep-ph/0201195 .[44] K. Gumus, N. Akchurin, S. Esen, and R. M. Harris, “CMS Sensitivity to DijetResonances”, Technical Report CMS-NOTE-2006-070, 2006. A The CMS Collaboration
Yerevan Physics Institute, Yerevan, Armenia
V. Khachatryan, A.M. Sirunyan, A. Tumasyan
Institut f ¨ur Hochenergiephysik der OeAW, Wien, Austria
W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Er ¨o, M. Flechl,M. Friedl, R. Fr ¨uhwirth , V.M. Ghete, C. Hartl, N. H ¨ormann, J. Hrubec, M. Jeitler , V. Kn ¨unz,A. K ¨onig, M. Krammer , I. Kr¨atschmer, D. Liko, T. Matsushita, I. Mikulec, D. Rabady ,B. Rahbaran, H. Rohringer, J. Schieck , R. Sch ¨ofbeck, J. Strauss, W. Treberer-Treberspurg,W. Waltenberger, C.-E. Wulz National Centre for Particle and High Energy Physics, Minsk, Belarus
V. Mossolov, N. Shumeiko, J. Suarez Gonzalez
Universiteit Antwerpen, Antwerpen, Belgium
S. Alderweireldt, T. Cornelis, E.A. De Wolf, X. Janssen, A. Knutsson, J. Lauwers, S. Luyckx,M. Van De Klundert, H. Van Haevermaet, P. Van Mechelen, N. Van Remortel, A. Van Spilbeeck
Vrije Universiteit Brussel, Brussel, Belgium
S. Abu Zeid, F. Blekman, J. D’Hondt, N. Daci, I. De Bruyn, K. Deroover, N. Heracleous,J. Keaveney, S. Lowette, L. Moreels, A. Olbrechts, Q. Python, D. Strom, S. Tavernier, W. VanDoninck, P. Van Mulders, G.P. Van Onsem, I. Van Parijs
Universit´e Libre de Bruxelles, Bruxelles, Belgium
P. Barria, H. Brun, C. Caillol, B. Clerbaux, G. De Lentdecker, G. Fasanella, L. Favart,R. Goldouzian, A. Grebenyuk, G. Karapostoli, T. Lenzi, A. L´eonard, T. Maerschalk, A. Marinov,L. Perni`e, A. Randle-conde, T. Seva, C. Vander Velde, P. Vanlaer, R. Yonamine, F. Zenoni,F. Zhang Ghent University, Ghent, Belgium
K. Beernaert, L. Benucci, A. Cimmino, S. Crucy, D. Dobur, A. Fagot, G. Garcia, M. Gul,J. Mccartin, A.A. Ocampo Rios, D. Poyraz, D. Ryckbosch, S. Salva, M. Sigamani, M. Tytgat,W. Van Driessche, E. Yazgan, N. Zaganidis
Universit´e Catholique de Louvain, Louvain-la-Neuve, Belgium
S. Basegmez, C. Beluffi , O. Bondu, S. Brochet, G. Bruno, A. Caudron, L. Ceard, C. Delaere,D. Favart, L. Forthomme, A. Giammanco , A. Jafari, P. Jez, M. Komm, V. Lemaitre, A. Mertens,M. Musich, C. Nuttens, L. Perrini, K. Piotrzkowski, A. Popov , L. Quertenmont, M. Selvaggi,M. Vidal Marono Universit´e de Mons, Mons, Belgium
N. Beliy, G.H. Hammad
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
W.L. Ald´a J ´unior, F.L. Alves, G.A. Alves, L. Brito, M. Correa Martins Junior, M. Hamer,C. Hensel, A. Moraes, M.E. Pol, P. Rebello Teles
Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
E. Belchior Batista Das Chagas, W. Carvalho, J. Chinellato , A. Cust ´odio, E.M. Da Costa,D. De Jesus Damiao, C. De Oliveira Martins, S. Fonseca De Souza, L.M. Huertas Guativa,H. Malbouisson, D. Matos Figueiredo, C. Mora Herrera, L. Mundim, H. Nogima, W.L. PradoDa Silva, A. Santoro, A. Sznajder, E.J. Tonelli Manganote , A. Vilela Pereira A The CMS Collaboration
Universidade Estadual Paulista a , Universidade Federal do ABC b , S˜ao Paulo, Brazil S. Ahuja a , C.A. Bernardes b , A. De Souza Santos b , S. Dogra a , T.R. Fernandez Perez Tomei a ,E.M. Gregores b , P.G. Mercadante b , C.S. Moon a ,8 , S.F. Novaes a , Sandra S. Padula a , D. RomeroAbad, J.C. Ruiz Vargas Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
A. Aleksandrov, R. Hadjiiska, P. Iaydjiev, M. Rodozov, S. Stoykova, G. Sultanov, M. Vutova
University of Sofia, Sofia, Bulgaria
A. Dimitrov, I. Glushkov, L. Litov, B. Pavlov, P. Petkov
Institute of High Energy Physics, Beijing, China
M. Ahmad, J.G. Bian, G.M. Chen, H.S. Chen, M. Chen, T. Cheng, R. Du, C.H. Jiang, R. Plestina ,F. Romeo, S.M. Shaheen, A. Spiezia, J. Tao, C. Wang, Z. Wang, H. Zhang State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
C. Asawatangtrakuldee, Y. Ban, Q. Li, S. Liu, Y. Mao, S.J. Qian, D. Wang, Z. Xu
Universidad de Los Andes, Bogota, Colombia
C. Avila, A. Cabrera, L.F. Chaparro Sierra, C. Florez, J.P. Gomez, B. Gomez Moreno,J.C. Sanabria
University of Split, Faculty of Electrical Engineering, Mechanical Engineering and NavalArchitecture, Split, Croatia
N. Godinovic, D. Lelas, I. Puljak, P.M. Ribeiro Cipriano
University of Split, Faculty of Science, Split, Croatia
Z. Antunovic, M. Kovac
Institute Rudjer Boskovic, Zagreb, Croatia
V. Brigljevic, K. Kadija, J. Luetic, S. Micanovic, L. Sudic
University of Cyprus, Nicosia, Cyprus
A. Attikis, G. Mavromanolakis, J. Mousa, C. Nicolaou, F. Ptochos, P.A. Razis, H. Rykaczewski
Charles University, Prague, Czech Republic
M. Bodlak, M. Finger , M. Finger Jr. Academy of Scientific Research and Technology of the Arab Republic of Egypt, EgyptianNetwork of High Energy Physics, Cairo, Egypt
Y. Assran , S. Elgammal , A. Ellithi Kamel , M.A. Mahmoud National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
B. Calpas, M. Kadastik, M. Murumaa, M. Raidal, A. Tiko, C. Veelken
Department of Physics, University of Helsinki, Helsinki, Finland
P. Eerola, J. Pekkanen, M. Voutilainen
Helsinki Institute of Physics, Helsinki, Finland
J. H¨ark ¨onen, V. Karim¨aki, R. Kinnunen, T. Lamp´en, K. Lassila-Perini, S. Lehti, T. Lind´en,P. Luukka, T. Peltola, E. Tuominen, J. Tuominiemi, E. Tuovinen, L. Wendland
Lappeenranta University of Technology, Lappeenranta, Finland
J. Talvitie, T. Tuuva
DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France
M. Besancon, F. Couderc, M. Dejardin, D. Denegri, B. Fabbro, J.L. Faure, C. Favaro, F. Ferri, S. Ganjour, A. Givernaud, P. Gras, G. Hamel de Monchenault, P. Jarry, E. Locci, M. Machet,J. Malcles, J. Rander, A. Rosowsky, M. Titov, A. Zghiche
Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France
I. Antropov, S. Baffioni, F. Beaudette, P. Busson, L. Cadamuro, E. Chapon, C. Charlot,O. Davignon, N. Filipovic, R. Granier de Cassagnac, M. Jo, S. Lisniak, L. Mastrolorenzo, P. Min´e,I.N. Naranjo, M. Nguyen, C. Ochando, G. Ortona, P. Paganini, P. Pigard, S. Regnard, R. Salerno,J.B. Sauvan, Y. Sirois, T. Strebler, Y. Yilmaz, A. Zabi
Institut Pluridisciplinaire Hubert Curien, Universit´e de Strasbourg, Universit´e de HauteAlsace Mulhouse, CNRS/IN2P3, Strasbourg, France
J.-L. Agram , J. Andrea, A. Aubin, D. Bloch, J.-M. Brom, M. Buttignol, E.C. Chabert,N. Chanon, C. Collard, E. Conte , X. Coubez, J.-C. Fontaine , D. Gel´e, U. Goerlach,C. Goetzmann, A.-C. Le Bihan, J.A. Merlin , K. Skovpen, P. Van Hove Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules,CNRS/IN2P3, Villeurbanne, France
S. Gadrat
Universit´e de Lyon, Universit´e Claude Bernard Lyon 1, CNRS-IN2P3, Institut de PhysiqueNucl´eaire de Lyon, Villeurbanne, France
S. Beauceron, C. Bernet, G. Boudoul, E. Bouvier, C.A. Carrillo Montoya, R. Chierici,D. Contardo, B. Courbon, P. Depasse, H. El Mamouni, J. Fan, J. Fay, S. Gascon, M. Gouzevitch,B. Ille, F. Lagarde, I.B. Laktineh, M. Lethuillier, L. Mirabito, A.L. Pequegnot, S. Perries, J.D. RuizAlvarez, D. Sabes, L. Sgandurra, V. Sordini, M. Vander Donckt, P. Verdier, S. Viret
Georgian Technical University, Tbilisi, Georgia
T. Toriashvili Tbilisi State University, Tbilisi, Georgia
L. Rurua
RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
C. Autermann, S. Beranek, L. Feld, A. Heister, M.K. Kiesel, K. Klein, M. Lipinski, A. Ostapchuk,M. Preuten, F. Raupach, S. Schael, J.F. Schulte, T. Verlage, H. Weber, V. Zhukov RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
M. Ata, M. Brodski, E. Dietz-Laursonn, D. Duchardt, M. Endres, M. Erdmann, S. Erdweg,T. Esch, R. Fischer, A. G ¨uth, T. Hebbeker, C. Heidemann, K. Hoepfner, S. Knutzen, P. Kreuzer,M. Merschmeyer, A. Meyer, P. Millet, S. Mukherjee, M. Olschewski, K. Padeken, P. Papacz,T. Pook, M. Radziej, H. Reithler, M. Rieger, F. Scheuch, L. Sonnenschein, D. Teyssier, S. Th ¨uer
RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
V. Cherepanov, Y. Erdogan, G. Fl ¨ugge, H. Geenen, M. Geisler, F. Hoehle, B. Kargoll, T. Kress,A. K ¨unsken, J. Lingemann, A. Nehrkorn, A. Nowack, I.M. Nugent, C. Pistone, O. Pooth,A. Stahl
Deutsches Elektronen-Synchrotron, Hamburg, Germany
M. Aldaya Martin, I. Asin, N. Bartosik, O. Behnke, U. Behrens, K. Borras , A. Burgmeier,A. Campbell, C. Contreras-Campana, F. Costanza, C. Diez Pardos, G. Dolinska, S. Dooling,T. Dorland, G. Eckerlin, D. Eckstein, T. Eichhorn, G. Flucke, E. Gallo , J. Garay Garcia,A. Geiser, A. Gizhko, P. Gunnellini, J. Hauk, M. Hempel , H. Jung, A. Kalogeropoulos,O. Karacheban , M. Kasemann, P. Katsas, J. Kieseler, C. Kleinwort, I. Korol, W. Lange,J. Leonard, K. Lipka, A. Lobanov, W. Lohmann , R. Mankel, I.-A. Melzer-Pellmann, A The CMS Collaboration
A.B. Meyer, G. Mittag, J. Mnich, A. Mussgiller, S. Naumann-Emme, A. Nayak, E. Ntomari,H. Perrey, D. Pitzl, R. Placakyte, A. Raspereza, B. Roland, M. ¨O. Sahin, P. Saxena, T. Schoerner-Sadenius, C. Seitz, S. Spannagel, K.D. Trippkewitz, R. Walsh, C. Wissing
University of Hamburg, Hamburg, Germany
V. Blobel, M. Centis Vignali, A.R. Draeger, J. Erfle, E. Garutti, K. Goebel, D. Gonzalez,M. G ¨orner, J. Haller, M. Hoffmann, R.S. H ¨oing, A. Junkes, R. Klanner, R. Kogler, N. Kovalchuk,T. Lapsien, T. Lenz, I. Marchesini, D. Marconi, M. Meyer, D. Nowatschin, J. Ott, F. Pantaleo ,T. Peiffer, A. Perieanu, N. Pietsch, J. Poehlsen, D. Rathjens, C. Sander, C. Scharf, P. Schleper,E. Schlieckau, A. Schmidt, S. Schumann, J. Schwandt, V. Sola, H. Stadie, G. Steinbr ¨uck,F.M. Stober, H. Tholen, D. Troendle, E. Usai, L. Vanelderen, A. Vanhoefer, B. Vormwald Institut f ¨ur Experimentelle Kernphysik, Karlsruhe, Germany
C. Barth, C. Baus, J. Berger, C. B ¨oser, E. Butz, T. Chwalek, F. Colombo, W. De Boer, A. Descroix,A. Dierlamm, S. Fink, F. Frensch, R. Friese, M. Giffels, A. Gilbert, D. Haitz, F. Hartmann ,S.M. Heindl, U. Husemann, I. Katkov , A. Kornmayer , P. Lobelle Pardo, B. Maier, H. Mildner,M.U. Mozer, T. M ¨uller, Th. M ¨uller, M. Plagge, G. Quast, K. Rabbertz, S. R ¨ocker, F. Roscher,M. Schr ¨oder, G. Sieber, H.J. Simonis, R. Ulrich, J. Wagner-Kuhr, S. Wayand, M. Weber, T. Weiler,S. Williamson, C. W ¨ohrmann, R. Wolf Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi,Greece
G. Anagnostou, G. Daskalakis, T. Geralis, V.A. Giakoumopoulou, A. Kyriakis, D. Loukas,A. Psallidas, I. Topsis-Giotis
National and Kapodistrian University of Athens, Athens, Greece
A. Agapitos, S. Kesisoglou, A. Panagiotou, N. Saoulidou, E. Tziaferi
University of Io´annina, Io´annina, Greece
I. Evangelou, G. Flouris, C. Foudas, P. Kokkas, N. Loukas, N. Manthos, I. Papadopoulos,E. Paradas, J. Strologas
Wigner Research Centre for Physics, Budapest, Hungary
G. Bencze, C. Hajdu, A. Hazi, P. Hidas, D. Horvath , F. Sikler, V. Veszpremi, G. Vesztergombi ,A.J. Zsigmond Institute of Nuclear Research ATOMKI, Debrecen, Hungary
N. Beni, S. Czellar, J. Karancsi , J. Molnar, Z. Szillasi University of Debrecen, Debrecen, Hungary
M. Bart ´ok , A. Makovec, P. Raics, Z.L. Trocsanyi, B. Ujvari National Institute of Science Education and Research, Bhubaneswar, India
S. Choudhury , P. Mal, K. Mandal, D.K. Sahoo, N. Sahoo, S.K. Swain Panjab University, Chandigarh, India
S. Bansal, S.B. Beri, V. Bhatnagar, R. Chawla, R. Gupta, U.Bhawandeep, A.K. Kalsi, A. Kaur,M. Kaur, R. Kumar, A. Mehta, M. Mittal, J.B. Singh, G. Walia
University of Delhi, Delhi, India
Ashok Kumar, A. Bhardwaj, B.C. Choudhary, R.B. Garg, S. Malhotra, M. Naimuddin, N. Nishu,K. Ranjan, R. Sharma, V. Sharma Saha Institute of Nuclear Physics, Kolkata, India
S. Bhattacharya, K. Chatterjee, S. Dey, S. Dutta, N. Majumdar, A. Modak, K. Mondal,S. Mukhopadhyay, A. Roy, D. Roy, S. Roy Chowdhury, S. Sarkar, M. Sharan
Bhabha Atomic Research Centre, Mumbai, India
A. Abdulsalam, R. Chudasama, D. Dutta, V. Jha, V. Kumar, A.K. Mohanty , L.M. Pant,P. Shukla, A. Topkar Tata Institute of Fundamental Research, Mumbai, India
T. Aziz, S. Banerjee, S. Bhowmik , R.M. Chatterjee, R.K. Dewanjee, S. Dugad, S. Ganguly,S. Ghosh, M. Guchait, A. Gurtu , Sa. Jain, G. Kole, S. Kumar, B. Mahakud, M. Maity ,G. Majumder, K. Mazumdar, S. Mitra, G.B. Mohanty, B. Parida, T. Sarkar , N. Sur, B. Sutar,N. Wickramage Indian Institute of Science Education and Research (IISER), Pune, India
S. Chauhan, S. Dube, A. Kapoor, K. Kothekar, S. Sharma
Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
H. Bakhshiansohi, H. Behnamian, S.M. Etesami , A. Fahim , M. Khakzad, M. MohammadiNajafabadi, M. Naseri, S. Paktinat Mehdiabadi, F. Rezaei Hosseinabadi, B. Safarzadeh ,M. Zeinali 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 , C. Calabria a , b , C. Caputo a , b , A. Colaleo a , D. Creanza a , c , L. Cristella a , b , N. DeFilippis a , c , M. De Palma a , b , L. Fiore a , G. Iaselli a , c , G. Maggi a , c , M. Maggi a , G. Miniello a , b ,S. My a , c , S. Nuzzo a , b , A. Pompili a , b , G. Pugliese a , c , R. Radogna a , b , A. Ranieri a , G. Selvaggi a , b ,L. Silvestris a ,2 , R. Venditti a , b INFN Sezione di Bologna a , Universit`a di Bologna b , Bologna, Italy G. Abbiendi a , C. Battilana , A.C. Benvenuti a , D. Bonacorsi a , b , S. Braibant-Giacomelli a , b ,L. Brigliadori a , b , R. Campanini a , b , P. Capiluppi a , b , A. Castro a , b , F.R. Cavallo a , S.S. Chhibra a , b ,G. Codispoti a , b , M. Cuffiani a , b , G.M. Dallavalle a , F. Fabbri a , A. Fanfani a , b , D. Fasanella a , b ,P. Giacomelli a , C. Grandi a , L. Guiducci a , b , S. Marcellini a , G. Masetti a , A. Montanari a ,F.L. Navarria a , b , A. Perrotta a , A.M. Rossi a , b , T. Rovelli a , b , G.P. Siroli a , b , N. Tosi a , b ,2 ,R. Travaglini a , b INFN Sezione di Catania a , Universit`a di Catania b , Catania, Italy G. Cappello a , M. Chiorboli a , b , S. Costa a , b , A. Di Mattia a , F. Giordano a , b , R. Potenza a , b ,A. Tricomi a , b , C. Tuve a , b INFN Sezione di Firenze a , Universit`a di Firenze b , Firenze, Italy G. Barbagli a , V. Ciulli a , b , C. Civinini a , R. D’Alessandro a , b , E. Focardi a , b , V. Gori a , b , P. Lenzi a , b ,M. Meschini a , S. Paoletti a , G. Sguazzoni a , L. Viliani a , b ,2 INFN Laboratori Nazionali di Frascati, Frascati, Italy
L. Benussi, S. Bianco, F. Fabbri, D. Piccolo, F. Primavera INFN Sezione di Genova a , Universit`a di Genova b , Genova, Italy V. Calvelli a , b , F. Ferro a , M. Lo Vetere a , b , M.R. Monge a , b , E. Robutti a , S. Tosi a , b INFN Sezione di Milano-Bicocca a , Universit`a di Milano-Bicocca b , Milano, Italy L. Brianza, M.E. Dinardo a , b , S. Fiorendi a , b , S. Gennai a , R. Gerosa a , b , A. Ghezzi a , b , P. Govoni a , b , A The CMS Collaboration
S. Malvezzi a , R.A. Manzoni a , b ,2 , B. Marzocchi a , b , D. Menasce a , L. Moroni a , M. Paganoni a , b ,D. Pedrini a , S. Ragazzi a , b , N. Redaelli a , T. Tabarelli de Fatis 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 , S. Di Guida a , d ,2 , M. Esposito a , b , F. Fabozzi a , c , A.O.M. Iorio a , b ,G. Lanza a , L. Lista a , S. Meola a , d ,2 , M. Merola a , P. Paolucci a ,2 , C. Sciacca a , b , F. Thyssen INFN Sezione di Padova a , Universit`a di Padova b , Padova, Italy, Universit`a di Trento c ,Trento, Italy P. Azzi a ,2 , N. Bacchetta a , L. Benato a , b , D. Bisello a , b , A. Boletti a , b , R. Carlin a , b , P. Checchia a ,M. Dall’Osso a , b ,2 , T. Dorigo a , U. Dosselli a , F. Gasparini a , b , U. Gasparini a , b , A. Gozzelino a ,S. Lacaprara a , M. Margoni a , b , G. Maron a ,31 , A.T. Meneguzzo a , b , F. Montecassiano a ,M. Passaseo a , J. Pazzini a , b ,2 , N. Pozzobon a , b , P. Ronchese a , b , F. Simonetto a , b , E. Torassa a ,M. Tosi a , b , M. Zanetti, P. Zotto a , b , A. Zucchetta a , b ,2 , G. Zumerle a , b INFN Sezione di Pavia a , Universit`a di Pavia b , Pavia, Italy A. Braghieri a , A. Magnani a , b , P. Montagna a , b , S.P. Ratti a , b , V. Re a , C. Riccardi a , b , P. Salvini a ,I. Vai a , b , P. Vitulo a , b INFN Sezione di Perugia a , Universit`a di Perugia b , Perugia, Italy L. Alunni Solestizi a , b , G.M. Bilei a , D. Ciangottini a , b ,2 , L. Fan `o a , b , P. Lariccia a , b , G. Mantovani a , b ,M. Menichelli a , A. Saha a , A. Santocchia a , b INFN Sezione di Pisa a , Universit`a di Pisa b , Scuola Normale Superiore di Pisa c , Pisa, Italy K. Androsov a ,32 , P. Azzurri a ,2 , G. Bagliesi a , J. Bernardini a , T. Boccali a , R. Castaldi a ,M.A. Ciocci a ,32 , R. Dell’Orso a , S. Donato a , c ,2 , G. Fedi, L. Fo`a a , c † , A. Giassi a , M.T. Grippo a ,32 ,F. Ligabue a , c , T. Lomtadze a , L. Martini a , b , A. Messineo a , b , F. Palla a , A. Rizzi a , b , A. Savoy-Navarro a ,33 , A.T. Serban a , P. Spagnolo a , R. Tenchini a , G. Tonelli a , b , A. Venturi a , P.G. Verdini a INFN Sezione di Roma a , Universit`a di Roma b , Roma, Italy L. Barone a , b , F. Cavallari a , G. D’imperio a , b ,2 , D. Del Re a , b ,2 , M. Diemoz a , S. Gelli a , b , C. Jorda a ,E. Longo a , b , F. Margaroli a , b , P. Meridiani a , G. Organtini a , b , R. Paramatti a , F. Preiato a , b ,S. Rahatlou a , b , C. Rovelli a , F. Santanastasio a , b , P. Traczyk a , b ,2 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 ,2 , S. Argiro a , b , M. Arneodo a , c , R. Bellan a , b , C. Biino a ,N. Cartiglia a , M. Costa a , b , R. Covarelli a , b , A. Degano a , b , N. Demaria a , L. Finco a , b ,2 , B. Kiani a , b ,C. Mariotti a , S. Maselli a , E. Migliore a , b , V. Monaco a , b , E. Monteil a , b , M.M. Obertino a , b ,L. Pacher a , b , N. Pastrone a , M. Pelliccioni a , G.L. Pinna Angioni a , b , F. Ravera a , b , A. Romero a , b ,M. Ruspa a , c , R. Sacchi a , b , A. Solano a , b , A. Staiano a 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 , G. Della Ricca a , b , B. Gobbo a , C. LaLicata a , b , M. Marone a , b , A. Schizzi a , b , A. Zanetti a Kangwon National University, Chunchon, Korea
A. Kropivnitskaya, S.K. Nam
Kyungpook National University, Daegu, Korea
D.H. Kim, G.N. Kim, M.S. Kim, D.J. Kong, S. Lee, Y.D. Oh, A. Sakharov, D.C. Son
Chonbuk National University, Jeonju, Korea
J.A. Brochero Cifuentes, H. Kim, T.J. Kim Chonnam National University, Institute for Universe and Elementary Particles, Kwangju,Korea
S. Song
Korea University, Seoul, Korea
S. Choi, Y. Go, D. Gyun, B. Hong, H. Kim, Y. Kim, B. Lee, K. Lee, K.S. Lee, S. Lee, S.K. Park,Y. Roh
Seoul National University, Seoul, Korea
H.D. Yoo
University of Seoul, Seoul, Korea
M. Choi, H. Kim, J.H. Kim, J.S.H. Lee, I.C. Park, G. Ryu, M.S. Ryu
Sungkyunkwan University, Suwon, Korea
Y. Choi, J. Goh, D. Kim, E. Kwon, J. Lee, I. Yu
Vilnius University, Vilnius, Lithuania
V. Dudenas, A. Juodagalvis, J. Vaitkus
National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
I. Ahmed, Z.A. Ibrahim, J.R. Komaragiri, M.A.B. Md Ali , F. Mohamad Idris , W.A.T. WanAbdullah, M.N. Yusli Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
E. Casimiro Linares, H. Castilla-Valdez, E. De La Cruz-Burelo, I. Heredia-De La Cruz ,A. Hernandez-Almada, R. Lopez-Fernandez, A. Sanchez-Hernandez Universidad Iberoamericana, Mexico City, Mexico
S. Carrillo Moreno, F. Vazquez Valencia
Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
I. Pedraza, H.A. Salazar Ibarguen
Universidad Aut ´onoma de San Luis Potos´ı, San Luis Potos´ı, Mexico
A. Morelos Pineda
University of Auckland, Auckland, New Zealand
D. Krofcheck
University of Canterbury, Christchurch, New Zealand
P.H. Butler
National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
A. Ahmad, M. Ahmad, Q. Hassan, H.R. Hoorani, W.A. Khan, T. Khurshid, M. Shoaib
National Centre for Nuclear Research, Swierk, Poland
H. Bialkowska, M. Bluj, B. Boimska, T. Frueboes, M. G ´orski, M. Kazana, K. Nawrocki,K. Romanowska-Rybinska, M. Szleper, P. Zalewski
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
G. Brona, K. Bunkowski, A. Byszuk , K. Doroba, A. Kalinowski, M. Konecki, J. Krolikowski,M. Misiura, M. Olszewski, M. Walczak Laborat ´orio de Instrumenta¸c˜ao e F´ısica Experimental de Part´ıculas, Lisboa, Portugal
P. Bargassa, C. Beir˜ao Da Cruz E Silva, A. Di Francesco, P. Faccioli, P.G. Ferreira Parracho, A The CMS Collaboration
M. Gallinaro, J. Hollar, N. Leonardo, L. Lloret Iglesias, F. Nguyen, J. Rodrigues Antunes,J. Seixas, O. Toldaiev, D. Vadruccio, J. Varela, P. Vischia
Joint Institute for Nuclear Research, Dubna, Russia
S. Afanasiev, P. Bunin, M. Gavrilenko, I. Golutvin, I. Gorbunov, A. Kamenev, V. Karjavin,A. Lanev, A. Malakhov, V. Matveev , P. Moisenz, V. Palichik, V. Perelygin, S. Shmatov,S. Shulha, N. Skatchkov, V. Smirnov, A. Zarubin
Petersburg Nuclear Physics Institute, Gatchina (St. Petersburg), Russia
V. Golovtsov, Y. Ivanov, V. Kim , E. Kuznetsova, P. Levchenko, V. Murzin, V. Oreshkin,I. Smirnov, V. Sulimov, L. Uvarov, S. Vavilov, 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, Moscow, Russia
V. Epshteyn, V. Gavrilov, N. Lychkovskaya, V. Popov, I. Pozdnyakov, G. Safronov,A. Spiridonov, E. Vlasov, A. Zhokin
National Research Nuclear University ’Moscow Engineering Physics Institute’ (MEPhI),Moscow, Russia
A. Bylinkin
P.N. Lebedev Physical Institute, Moscow, Russia
V. Andreev, M. Azarkin , I. Dremin , M. Kirakosyan, A. Leonidov , G. Mesyats, S.V. Rusakov Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow,Russia
A. Baskakov, A. Belyaev, E. Boos, M. Dubinin , L. Dudko, A. Ershov, A. Gribushin,V. Klyukhin, O. Kodolova, I. Lokhtin, I. Myagkov, S. Obraztsov, S. Petrushanko, V. Savrin,A. Snigirev State Research Center of Russian Federation, Institute for High Energy Physics, Protvino,Russia
I. Azhgirey, I. Bayshev, S. Bitioukov, V. Kachanov, A. Kalinin, D. Konstantinov, V. Krychkine,V. Petrov, R. Ryutin, A. Sobol, L. Tourtchanovitch, S. Troshin, N. Tyurin, A. Uzunian, A. Volkov
University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade,Serbia
P. Adzic , P. Cirkovic, J. Milosevic, V. Rekovic Centro de Investigaciones Energ´eticas Medioambientales y Tecnol ´ogicas (CIEMAT),Madrid, Spain
J. Alcaraz Maestre, E. Calvo, M. Cerrada, M. Chamizo Llatas, N. Colino, B. De La Cruz,A. Delgado Peris, A. Escalante Del Valle, C. Fernandez Bedoya, J.P. Fern´andez Ramos, J. Flix,M.C. Fouz, P. Garcia-Abia, O. Gonzalez Lopez, S. Goy Lopez, J.M. Hernandez, M.I. Josa,E. Navarro De Martino, A. P´erez-Calero Yzquierdo, J. Puerta Pelayo, A. Quintario Olmeda,I. Redondo, L. Romero, J. Santaolalla, M.S. Soares
Universidad Aut ´onoma de Madrid, Madrid, Spain
C. Albajar, J.F. de Troc ´oniz, M. Missiroli, D. Moran Universidad de Oviedo, Oviedo, Spain
J. Cuevas, J. Fernandez Menendez, S. Folgueras, I. Gonzalez Caballero, E. Palencia Cortezon,J.M. Vizan Garcia
Instituto de F´ısica de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
I.J. Cabrillo, A. Calderon, J.R. Casti ˜neiras De Saa, P. De Castro Manzano, M. Fernandez,J. Garcia-Ferrero, G. Gomez, A. Lopez Virto, J. Marco, R. Marco, C. Martinez Rivero,F. Matorras, J. Piedra Gomez, T. Rodrigo, A.Y. Rodr´ıguez-Marrero, A. Ruiz-Jimeno,L. Scodellaro, N. Trevisani, I. Vila, R. Vilar Cortabitarte
CERN, European Organization for Nuclear Research, Geneva, Switzerland
D. Abbaneo, E. Auffray, G. Auzinger, M. Bachtis, P. Baillon, A.H. Ball, D. Barney, A. Benaglia,J. Bendavid, L. Benhabib, G.M. Berruti, P. Bloch, A. Bocci, A. Bonato, C. Botta, H. Breuker,T. Camporesi, R. Castello, G. Cerminara, M. D’Alfonso, D. d’Enterria, A. Dabrowski,V. Daponte, A. David, M. De Gruttola, F. De Guio, A. De Roeck, S. De Visscher, E. DiMarco , M. Dobson, M. Dordevic, B. Dorney, T. du Pree, D. Duggan, M. D ¨unser, N. Dupont,A. Elliott-Peisert, G. Franzoni, J. Fulcher, W. Funk, D. Gigi, K. Gill, D. Giordano, M. Girone,F. Glege, R. Guida, S. Gundacker, M. Guthoff, J. Hammer, P. Harris, J. Hegeman, V. Innocente,P. Janot, H. Kirschenmann, M.J. Kortelainen, K. Kousouris, K. Krajczar, P. Lecoq, C. Lourenc¸o,M.T. Lucchini, N. Magini, L. Malgeri, M. Mannelli, A. Martelli, L. Masetti, F. Meijers,S. Mersi, E. Meschi, F. Moortgat, S. Morovic, M. Mulders, M.V. Nemallapudi, H. Neugebauer,S. Orfanelli , L. Orsini, L. Pape, E. Perez, M. Peruzzi, A. Petrilli, G. Petrucciani, A. Pfeiffer,M. Pierini, D. Piparo, A. Racz, T. Reis, G. Rolandi , M. Rovere, M. Ruan, H. Sakulin, C. Sch¨afer,C. Schwick, M. Seidel, A. Sharma, P. Silva, M. Simon, P. Sphicas , J. Steggemann, B. Stieger,M. Stoye, Y. Takahashi, D. Treille, A. Triossi, A. Tsirou, G.I. Veres , N. Wardle, H.K. W ¨ohri,A. Zagozdzinska , W.D. Zeuner Paul Scherrer Institut, Villigen, Switzerland
W. Bertl, K. Deiters, W. Erdmann, R. Horisberger, Q. Ingram, H.C. Kaestli, D. Kotlinski,U. Langenegger, D. Renker, T. Rohe
Institute for Particle Physics, ETH Zurich, Zurich, Switzerland
F. Bachmair, L. B¨ani, L. Bianchini, B. Casal, G. Dissertori, M. Dittmar, M. Doneg`a, P. Eller,C. Grab, C. Heidegger, D. Hits, J. Hoss, G. Kasieczka, P. Lecomte † , W. Lustermann, B. Mangano,M. Marionneau, P. Martinez Ruiz del Arbol, M. Masciovecchio, D. Meister, F. Micheli,P. Musella, F. Nessi-Tedaldi, F. Pandolfi, J. Pata, F. Pauss, L. Perrozzi, M. Quittnat, M. Rossini,M. Sch ¨onenberger, A. Starodumov , M. Takahashi, V.R. Tavolaro, K. Theofilatos, R. Wallny Universit¨at Z ¨urich, Zurich, Switzerland
T.K. Aarrestad, C. Amsler , L. Caminada, M.F. Canelli, V. Chiochia, A. De Cosa, C. Galloni,A. Hinzmann, T. Hreus, B. Kilminster, C. Lange, J. Ngadiuba, D. Pinna, G. Rauco, P. Robmann,F.J. Ronga, D. Salerno, Y. Yang National Central University, Chung-Li, Taiwan
M. Cardaci, K.H. Chen, T.H. Doan, Sh. Jain, R. Khurana, M. Konyushikhin, C.M. Kuo, W. Lin,Y.J. Lu, A. Pozdnyakov, S.S. Yu
National Taiwan University (NTU), Taipei, Taiwan
Arun Kumar, P. Chang, Y.H. Chang, Y.W. Chang, Y. Chao, K.F. Chen, P.H. Chen, C. Dietz,F. Fiori, U. Grundler, W.-S. Hou, Y. Hsiung, Y.F. Liu, R.-S. Lu, M. Mi ˜nano Moya, E. Petrakou,J.f. Tsai, Y.M. Tzeng A The CMS Collaboration
Chulalongkorn University, Faculty of Science, Department of Physics, Bangkok, Thailand
B. Asavapibhop, K. Kovitanggoon, G. Singh, N. Srimanobhas, N. Suwonjandee
Cukurova University, Adana, Turkey
A. Adiguzel, M.N. Bakirci , A. Bat, Z.S. Demiroglu, C. Dozen, F.H. Gecit, S. Girgis,G. Gokbulut, Y. Guler, E. Gurpinar, I. Hos, E.E. Kangal , A. Kayis Topaksu, G. Onengut ,M. Ozcan, K. Ozdemir , S. Ozturk , D. Sunar Cerci , B. Tali , H. Topakli , C. Zorbilmez Middle East Technical University, Physics Department, Ankara, Turkey
B. Bilin, S. Bilmis, B. Isildak , G. Karapinar , M. Yalvac, M. Zeyrek Bogazici University, Istanbul, Turkey
E. G ¨ulmez, M. Kaya , O. Kaya , E.A. Yetkin , T. Yetkin Istanbul Technical University, Istanbul, Turkey
A. Cakir, K. Cankocak, S. Sen , F.I. Vardarlı 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, P. Sorokin
University of Bristol, Bristol, United Kingdom
R. Aggleton, F. Ball, L. Beck, J.J. Brooke, E. Clement, D. Cussans, H. Flacher, J. Goldstein,M. Grimes, G.P. Heath, H.F. Heath, J. Jacob, L. Kreczko, C. Lucas, Z. Meng, D.M. Newbold ,S. Paramesvaran, A. Poll, T. Sakuma, S. Seif El Nasr-storey, S. Senkin, D. Smith, V.J. Smith Rutherford Appleton Laboratory, Didcot, United Kingdom
K.W. Bell, A. Belyaev , C. Brew, R.M. Brown, L. Calligaris, D. Cieri, D.J.A. Cockerill,J.A. Coughlan, K. Harder, S. Harper, E. Olaiya, D. Petyt, C.H. Shepherd-Themistocleous,A. Thea, I.R. Tomalin, T. Williams, S.D. Worm Imperial College, London, United Kingdom
M. Baber, R. Bainbridge, O. Buchmuller, A. Bundock, D. Burton, S. Casasso, M. Citron,D. Colling, L. Corpe, P. Dauncey, G. Davies, A. De Wit, M. Della Negra, P. Dunne, A. Elwood,D. Futyan, G. Hall, G. Iles, R. Lane, R. Lucas , L. Lyons, A.-M. Magnan, S. Malik, J. Nash,A. Nikitenko , J. Pela, M. Pesaresi, K. Petridis, D.M. Raymond, A. Richards, A. Rose, C. Seez,A. Tapper, K. Uchida, M. Vazquez Acosta , T. Virdee, S.C. Zenz Brunel University, Uxbridge, United Kingdom
J.E. Cole, P.R. Hobson, A. Khan, P. Kyberd, D. Leggat, D. Leslie, I.D. Reid, P. Symonds,L. Teodorescu, M. Turner
Baylor University, Waco, USA
A. Borzou, K. Call, J. Dittmann, K. Hatakeyama, H. Liu, N. Pastika
The University of Alabama, Tuscaloosa, USA
O. Charaf, S.I. Cooper, C. Henderson, P. Rumerio
Boston University, Boston, USA
D. Arcaro, A. Avetisyan, T. Bose, D. Gastler, D. Rankin, C. Richardson, J. Rohlf, L. Sulak, D. Zou Brown University, Providence, USA
J. Alimena, E. Berry, D. Cutts, A. Ferapontov, A. Garabedian, J. Hakala, U. Heintz, E. Laird,G. Landsberg, Z. Mao, M. Narain, S. Piperov, S. Sagir, R. Syarif
University of California, Davis, Davis, USA
R. Breedon, G. Breto, M. Calderon De La Barca Sanchez, S. Chauhan, M. Chertok, J. Conway,R. Conway, P.T. Cox, R. Erbacher, G. Funk, M. Gardner, W. Ko, R. Lander, C. Mclean,M. Mulhearn, D. Pellett, J. Pilot, F. Ricci-Tam, S. Shalhout, J. Smith, M. Squires, D. Stolp,M. Tripathi, S. Wilbur, R. Yohay
University of California, Los Angeles, USA
R. Cousins, P. Everaerts, A. Florent, J. Hauser, M. Ignatenko, D. Saltzberg, E. Takasugi,V. Valuev, M. Weber
University of California, Riverside, Riverside, USA
K. Burt, R. Clare, J. Ellison, J.W. Gary, G. Hanson, J. Heilman, M. Ivova PANEVA, P. Jandir,E. Kennedy, F. Lacroix, O.R. Long, M. Malberti, M. Olmedo Negrete, A. Shrinivas, H. Wei,S. Wimpenny, B. R. Yates
University of California, San Diego, La Jolla, USA
J.G. Branson, G.B. Cerati, S. Cittolin, R.T. D’Agnolo, M. Derdzinski, A. Holzner, R. Kelley,D. Klein, J. Letts, I. Macneill, D. Olivito, S. Padhi, M. Pieri, M. Sani, V. Sharma, S. Simon,M. Tadel, A. Vartak, S. Wasserbaech , C. Welke, F. W ¨urthwein, A. Yagil, G. Zevi Della Porta University of California, Santa Barbara, Santa Barbara, USA
J. Bradmiller-Feld, C. Campagnari, A. Dishaw, V. Dutta, K. Flowers, M. Franco Sevilla,P. Geffert, C. George, F. Golf, L. Gouskos, J. Gran, J. Incandela, N. Mccoll, S.D. Mullin,J. Richman, D. Stuart, I. Suarez, C. West, J. Yoo
California Institute of Technology, Pasadena, USA
D. Anderson, A. Apresyan, A. Bornheim, J. Bunn, Y. Chen, J. Duarte, A. Mott, H.B. Newman,C. Pena, M. Spiropulu, J.R. Vlimant, S. Xie, R.Y. Zhu
Carnegie Mellon University, Pittsburgh, USA
M.B. Andrews, V. Azzolini, A. Calamba, B. Carlson, T. Ferguson, M. Paulini, J. Russ, M. Sun,H. Vogel, I. Vorobiev
University of Colorado Boulder, Boulder, USA
J.P. Cumalat, W.T. Ford, A. Gaz, F. Jensen, A. Johnson, M. Krohn, T. Mulholland, U. Nauenberg,K. Stenson, S.R. Wagner
Cornell University, Ithaca, USA
J. Alexander, A. Chatterjee, J. Chaves, J. Chu, S. Dittmer, N. Eggert, N. Mirman, G. NicolasKaufman, J.R. Patterson, A. Rinkevicius, A. Ryd, L. Skinnari, L. Soffi, W. Sun, S.M. Tan,W.D. Teo, J. Thom, J. Thompson, J. Tucker, Y. Weng, P. Wittich
Fermi National Accelerator Laboratory, Batavia, USA
S. Abdullin, M. Albrow, G. Apollinari, S. Banerjee, L.A.T. Bauerdick, A. Beretvas, J. Berryhill,P.C. Bhat, G. Bolla, K. Burkett, J.N. Butler, H.W.K. Cheung, F. Chlebana, S. Cihangir, V.D. Elvira,I. Fisk, J. Freeman, E. Gottschalk, L. Gray, D. Green, S. Gr ¨unendahl, O. Gutsche, J. Hanlon,D. Hare, R.M. Harris, S. Hasegawa, J. Hirschauer, Z. Hu, B. Jayatilaka, S. Jindariani, M. Johnson,U. Joshi, B. Klima, B. Kreis, S. Lammel, J. Linacre, D. Lincoln, R. Lipton, T. Liu, R. Lopes DeS´a, J. Lykken, K. Maeshima, J.M. Marraffino, S. Maruyama, D. Mason, P. McBride, P. Merkel,S. Mrenna, S. Nahn, C. Newman-Holmes † , V. O’Dell, K. Pedro, O. Prokofyev, G. Rakness, A The CMS Collaboration
E. Sexton-Kennedy, A. Soha, W.J. Spalding, L. Spiegel, S. Stoynev, N. Strobbe, L. Taylor,S. Tkaczyk, N.V. Tran, L. Uplegger, E.W. Vaandering, C. Vernieri, M. Verzocchi, R. Vidal,M. Wang, H.A. Weber, A. Whitbeck
University of Florida, Gainesville, USA
D. Acosta, P. Avery, P. Bortignon, D. Bourilkov, A. Carnes, M. Carver, D. Curry, S. Das,R.D. Field, I.K. Furic, S.V. Gleyzer, J. Konigsberg, A. Korytov, K. Kotov, P. Ma, K. Matchev,H. Mei, P. Milenovic , G. Mitselmakher, D. Rank, R. Rossin, L. Shchutska, M. Snowball,D. Sperka, N. Terentyev, L. Thomas, J. Wang, S. Wang, J. Yelton Florida International University, Miami, USA
S. Hewamanage, S. Linn, P. Markowitz, G. Martinez, J.L. Rodriguez
Florida State University, Tallahassee, USA
A. Ackert, J.R. Adams, T. Adams, A. Askew, S. Bein, J. Bochenek, B. Diamond, J. Haas,S. Hagopian, V. Hagopian, K.F. Johnson, A. Khatiwada, H. Prosper, M. Weinberg
Florida Institute of Technology, Melbourne, USA
M.M. Baarmand, V. Bhopatkar, S. Colafranceschi , M. Hohlmann, H. Kalakhety, D. Noonan,T. Roy, F. Yumiceva University of Illinois at Chicago (UIC), Chicago, USA
M.R. Adams, L. Apanasevich, D. Berry, R.R. Betts, I. Bucinskaite, R. Cavanaugh, O. Evdokimov,L. Gauthier, C.E. Gerber, D.J. Hofman, P. Kurt, C. O’Brien, I.D. Sandoval Gonzalez, P. Turner,N. Varelas, Z. Wu, M. Zakaria
The University of Iowa, Iowa City, USA
B. Bilki , W. Clarida, K. Dilsiz, S. Durgut, R.P. Gandrajula, M. Haytmyradov, V. Khristenko,J.-P. Merlo, H. Mermerkaya , 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
I. Anderson, B.A. Barnett, B. Blumenfeld, N. Eminizer, D. Fehling, L. Feng, A.V. Gritsan,P. Maksimovic, C. Martin, M. Osherson, J. Roskes, A. Sady, U. Sarica, M. Swartz, M. Xiao,Y. Xin, C. You
The University of Kansas, Lawrence, USA
P. Baringer, A. Bean, G. Benelli, C. Bruner, R.P. Kenny III, D. Majumder, M. Malek, M. Murray,S. Sanders, R. Stringer, Q. Wang
Kansas State University, Manhattan, USA
A. Ivanov, K. Kaadze, S. Khalil, M. Makouski, Y. Maravin, A. Mohammadi, L.K. Saini,N. Skhirtladze, S. Toda
Lawrence Livermore National Laboratory, Livermore, USA
D. Lange, F. Rebassoo, D. Wright
University of Maryland, College Park, USA
C. Anelli, A. Baden, O. Baron, A. Belloni, B. Calvert, S.C. Eno, C. Ferraioli, J.A. Gomez,N.J. Hadley, S. Jabeen, R.G. Kellogg, T. Kolberg, J. Kunkle, Y. Lu, A.C. Mignerey, Y.H. Shin,A. Skuja, M.B. Tonjes, S.C. Tonwar
Massachusetts Institute of Technology, Cambridge, USA
A. Apyan, R. Barbieri, A. Baty, K. Bierwagen, S. Brandt, W. Busza, I.A. Cali, Z. Demiragli, L. DiMatteo, G. Gomez Ceballos, M. Goncharov, D. Gulhan, Y. Iiyama, G.M. Innocenti, M. Klute, D. Kovalskyi, Y.S. Lai, Y.-J. Lee, A. Levin, P.D. Luckey, A.C. Marini, C. Mcginn, C. Mironov,S. Narayanan, X. Niu, C. Paus, C. Roland, G. Roland, J. Salfeld-Nebgen, G.S.F. Stephans,K. Sumorok, M. Varma, D. Velicanu, J. Veverka, J. Wang, T.W. Wang, B. Wyslouch, M. Yang,V. Zhukova
University of Minnesota, Minneapolis, USA
B. Dahmes, A. Evans, A. Finkel, A. Gude, P. Hansen, S. Kalafut, S.C. Kao, K. Klapoetke,Y. Kubota, Z. Lesko, J. Mans, S. Nourbakhsh, N. Ruckstuhl, R. Rusack, N. Tambe, J. Turkewitz
University of Mississippi, Oxford, USA
J.G. Acosta, S. Oliveros
University of Nebraska-Lincoln, Lincoln, USA
E. Avdeeva, R. Bartek, K. Bloom, S. Bose, D.R. Claes, A. Dominguez, C. Fangmeier, R. GonzalezSuarez, R. Kamalieddin, D. Knowlton, I. Kravchenko, F. Meier, J. Monroy, F. Ratnikov,J.E. Siado, G.R. Snow
State University of New York at Buffalo, Buffalo, USA
M. Alyari, J. Dolen, J. George, A. Godshalk, C. Harrington, I. Iashvili, J. Kaisen, A. Kharchilava,A. Kumar, S. Rappoccio, B. Roozbahani
Northeastern University, Boston, USA
G. Alverson, E. Barberis, D. Baumgartel, M. Chasco, A. Hortiangtham, A. Massironi,D.M. Morse, D. Nash, T. Orimoto, R. Teixeira De Lima, D. Trocino, R.-J. Wang, D. Wood,J. Zhang
Northwestern University, Evanston, USA
S. Bhattacharya, K.A. Hahn, A. Kubik, J.F. Low, N. Mucia, N. Odell, B. Pollack, M. Schmitt,K. Sung, M. Trovato, M. Velasco
University of Notre Dame, Notre Dame, USA
A. Brinkerhoff, N. Dev, M. Hildreth, C. Jessop, D.J. Karmgard, N. Kellams, K. Lannon,N. Marinelli, F. Meng, C. Mueller, Y. Musienko , M. Planer, A. Reinsvold, R. Ruchti, G. Smith,S. Taroni, N. Valls, M. Wayne, M. Wolf, A. Woodard The Ohio State University, Columbus, USA
L. Antonelli, J. Brinson, B. Bylsma, L.S. Durkin, S. Flowers, A. Hart, C. Hill, R. Hughes, W. Ji,T.Y. Ling, B. Liu, W. Luo, D. Puigh, M. Rodenburg, B.L. Winer, H.W. Wulsin
Princeton University, Princeton, USA
O. Driga, P. Elmer, J. Hardenbrook, P. Hebda, S.A. Koay, P. Lujan, D. Marlow, T. Medvedeva,M. Mooney, J. Olsen, C. Palmer, P. Pirou´e, H. Saka, D. Stickland, C. Tully, A. Zuranski
University of Puerto Rico, Mayaguez, USA
S. Malik
Purdue University, West Lafayette, USA
A. Barker, V.E. Barnes, D. Benedetti, D. Bortoletto, L. Gutay, M.K. Jha, M. Jones, A.W. Jung,K. Jung, A. Kumar, D.H. Miller, N. Neumeister, B.C. Radburn-Smith, X. Shi, I. Shipsey,D. Silvers, J. Sun, A. Svyatkovskiy, F. Wang, W. Xie, L. Xu
Purdue University Calumet, Hammond, USA
N. Parashar, J. Stupak A The CMS Collaboration
Rice University, Houston, USA
A. Adair, B. Akgun, Z. Chen, K.M. Ecklund, F.J.M. Geurts, M. Guilbaud, W. Li, B. Michlin,M. Northup, B.P. Padley, R. Redjimi, J. Roberts, J. Rorie, Z. Tu, J. Zabel
University of Rochester, Rochester, USA
B. Betchart, A. Bodek, P. de Barbaro, R. Demina, Y. Eshaq, T. Ferbel, M. Galanti, A. Garcia-Bellido, J. Han, A. Harel, O. Hindrichs, A. Khukhunaishvili, G. Petrillo, P. Tan, M. Verzetti
Rutgers, The State University of New Jersey, Piscataway, USA
J.P. Chou, E. Contreras-Campana, D. Ferencek, Y. Gershtein, E. Halkiadakis, D. Hidas,E. Hughes, S. Kaplan, R. Kunnawalkam Elayavalli, A. Lath, K. Nash, S. Salur, S. Schnetzer,D. Sheffield, S. Somalwar, R. Stone, S. Thomas, P. Thomassen, M. Walker
University of Tennessee, Knoxville, USA
M. Foerster, G. Riley, K. Rose, S. Spanier
Texas A&M University, College Station, USA
O. Bouhali , A. Castaneda Hernandez , A. Celik, M. Dalchenko, M. De Mattia, A. Delgado,S. Dildick, R. Eusebi, J. Gilmore, T. Huang, T. Kamon , V. Krutelyov, R. Mueller, I. Osipenkov,Y. Pakhotin, R. Patel, A. Perloff, A. Rose, A. Safonov, A. Tatarinov, K.A. Ulmer Texas Tech University, Lubbock, USA
N. Akchurin, C. Cowden, J. Damgov, C. Dragoiu, P.R. Dudero, J. Faulkner, S. Kunori,K. Lamichhane, S.W. Lee, T. Libeiro, S. Undleeb, I. Volobouev
Vanderbilt University, Nashville, USA
E. Appelt, A.G. Delannoy, S. Greene, A. Gurrola, R. Janjam, W. Johns, C. Maguire, Y. Mao,A. Melo, H. Ni, P. Sheldon, S. Tuo, J. Velkovska, Q. Xu
University of Virginia, Charlottesville, USA
M.W. Arenton, B. Cox, B. Francis, J. Goodell, R. Hirosky, A. Ledovskoy, H. Li, C. Lin, C. Neu,T. Sinthuprasith, X. Sun, Y. Wang, E. Wolfe, J. Wood, F. Xia
Wayne State University, Detroit, USA
C. Clarke, R. Harr, P.E. Karchin, C. Kottachchi Kankanamge Don, P. Lamichhane, J. Sturdy
University of Wisconsin - Madison, Madison, WI, USA
D.A. Belknap, D. Carlsmith, M. Cepeda, S. Dasu, L. Dodd, S. Duric, B. Gomber, M. Grothe,R. Hall-Wilton, M. Herndon, A. Herv´e, P. Klabbers, A. Lanaro, A. Levine, K. Long, R. Loveless,A. Mohapatra, I. Ojalvo, T. Perry, G.A. Pierro, G. Polese, T. Ruggles, T. Sarangi, A. Savin,A. Sharma, N. Smith, W.H. Smith, D. Taylor, P. Verwilligen, N. Woods † : Deceased1: Also at Vienna University of Technology, Vienna, Austria2: Also at CERN, European Organization for Nuclear Research, Geneva, Switzerland3: Also at State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing,China4: Also at Institut Pluridisciplinaire Hubert Curien, Universit´e de Strasbourg, Universit´e deHaute Alsace Mulhouse, CNRS/IN2P3, Strasbourg, France5: Also at National Institute of Chemical Physics and Biophysics, Tallinn, Estonia6: Also at Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University,Moscow, Russia7: Also at Universidade Estadual de Campinas, Campinas, Brazil8: Also at Centre National de la Recherche Scientifique (CNRS) - IN2P3, Paris, France