R. Battiston
CERN
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Publication
Featured researches published by R. Battiston.
Physics Letters B | 1983
M. Banner; W. Zeller; Franco Bonaudi; M. Borghini; R. Mollerud; F. Pastore; P. H. Hansen; V. Vercesi; J.M. Gaillard; B. Mansoulie; B.S. Nilsson; G Parrour; J. Teiger; V. Hungerbühler; H.M. Steiner; K. Borer; M. Livan; G. Sauvage; P. Mani; P. Jenni; P.-A. Dorsaz; V.G. Goggi; G. Stimpfl; T. Himel; J.C. Chollet; A. Rothenberg; J.L. Siegrist; C. Onions; S. Loucatos; B. Madsen
Abstract We report the results of a search for single isolated electrons of high transverse momentum at the CERN p p collider. Above 15 GeV/c, four events are found having large missing transverse energy along a direction opposite in azimuth to that of the high-pT electron. Both the configuration of the events and their number are consistent with the expectations from the process p + p → W ± + anything , with W→e+ν, where W± is the charged Intermediate Vector Boso postulated by the unified electroweak theory.
Physics Letters B | 1984
P. Bagnaia; W. Zeller; M. Borghini; R. Mollerud; F. Pastore; P. Hansen; V. Vercesi; J.M. Gaillard; B. Mansoulie; J. Bürger; J. Teiger; C. Gössling; K. Borer; R. Engelmann; H. Zaccone; G. Sauvage; P. Mani; P. Jenni; V.G. Goggi; G. Stimpfl; Janusz Andrzej Zakrzewski; T. Himel; J.C. Chollet; A. Rothenberg; J.L. Siegrist; M Livan; C. Onions; S. Loucatos; B. Madsen; P. Bloch
Abstract Using a sample of events collected by UA2 and corresponding to an integrated luminosity of 116 nb −1 . we have searched for electron-“neutrino” pairs in which the transverse momenta of the electron and of the “neutrino” exceed 15 GeV/c and 25 GeV/c respectively. A total of 35 events are observed in low background conditions. Most events can be interpreted in terms of W ± production from QCD processes. Events in which the observation of hard jets makes this interpretation unlikely are described in detail. Possible sources of background contamination are considered.
Physics Letters B | 1984
P. Bagnaia; W. Zeller; M. Borghini; R. Mollerud; F. Pastore; P. Hansen; V. Vercesi; J.M. Gaillard; B. Mansoulie; J. Bürger; J. Teiger; C. Gössling; K. Borer; R. Engelmann; H. Zaccone; G. Sauvage; P. Mani; P. Jenni; V.G. Goggi; G. Stimpfl; Janusz Andrzej Zakrzewski; T. Himel; J.C. Chollet; A. Rothenberg; J.L. Siegrist; M Livan; C. Onions; S. Loucatos; B. Madsen; P. Bloch
Abstract The production of very large transverse momentum hadron jets has been measured in the UA2 experiment at the CERN p p Collider for s = 540 GeV using a highly segmented calorimeter. The range of previously available cross sections for inclusive jet production is extended to pT = 150 GeV and the two-jet invariant mass distribution to mjj = 280 GeV with the largely increased data sample collected during the 1983 running period. The results are compared with the predictions of QCD models.
Physics Letters B | 1987
R Ansari; P. Bagnaia; M. Banner; R. Battiston; Konrad Bernlohr; C.N. Booth; K Borer; M. Borghini; G. Carboni; V. Cavasinni; P. Cenci; J C Chollet; A.G. Clark; C Conta; C. Corona; F. Costantini; P. Darriulat; B. De Lotto; T. Del Prete; L. DiLella; J Dines-Hansen; K. Einsweiler; L. Fayard; R Ferrari; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; V.G. Goggi; C. Gössling
Abstract The invariant mass distribution of jet pairs observed in the UA2 central calorimeter is examined in the search for an excess of events in the region of the W ± and Z bosons, which would reveal their decays into quark-antiquark pairs. We give a detailed account of the methods of analysis used to optimize the mass resolution achieving ≅±10%. A structure is observed at the level of ≅ 3 standard deviations in the mass region of W ± and Z with shape and position consistent with expectation from their qqdecays. It contains 632 ± 190 events, 1.4 standard deviations above the standard model prediction of 340 ± 80 events.
Archive | 1988
R Ansari; P. Bagnaia; M. Banner; R. Battiston; Konrad Bernlohr; C.N. Booth; K Borer; M. Borghini; G. Carboni; V. Cavasinni; P. Cenci; J C Chollet; A.G. Clark; C Conta; C. Corona; F. Costantini; Pierre Darriulat; B. De Lotto; T. Del Prete; Luigi Di Lella; J Dines-Hansen; K. Einsweiler; L. Fayard; R Ferrari; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; Giorgio V Goggi; C. Gössling
Archive | 1987
R Ansari; P. Bagnaia; M. Banner; R. Battiston; Konrad Bernlohr; C.N. Booth; K Borer; M. Borghini; G. Carboni; V. Cavasinni; P. Cenci; J C Chollet; A.G. Clark; C Conta; F. Costantini; Pierre Darriulat; B. De Lotto; T. Del Prete; Luigi Di Lella; J Dines-Hansen; K. Einsweiler; L. Fayard; R Ferrari; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; Giorgio V Goggi; C. Gössling; R. Hahn
Archive | 1986
J. A. Appel; P. Bagnaia; M. Banner; R. Battiston; Konrad Bernlohr; K Borer; M. Borghini; J. Bürger; G. Carboni; V. Cavasinni; P. Cenci; J C Chollet; A.G. Clark; A. Codino; C Conta; Pierre Darriulat; B. De Lotto; T. Del Prete; Luigi Di Lella; J Dines-Hansen; K. Einsweiler; R. Engelmann; L. Fayard; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; Giorgio V Goggi; C. Gössling; R. Hahn
Archive | 1986
J. A. Appel; P. Bagnaia; M. Banner; R. Battiston; Konrad Bernlohr; K Borer; M. Borghini; G. Carboni; V. Cavasinni; P. Cenci; J C Chollet; A.G. Clark; A. Codino; C Conta; Pierre Darriulat; B. De Lotto; T. Del Prete; Luigi Di Lella; J Dines-Hansen; K. Einsweiler; R. Engelmann; L. Fayard; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; Giorgio V Goggi; C. Gössling; R. Hahn; H Hanni
Archive | 1986
J. A. Appel; P. Bagnaia; M. Banner; R. Battiston; Konrad Bernlohr; K Borer; M. Borghini; G. Carboni; V. Cavasinni; P. Cenci; J C Chollet; A.G. Clark; C Conta; Pierre Darriulat; B. De Lotto; T. Del Prete; Luigi Di Lella; J Dines-Hansen; K. Einsweiler; R. Engelmann; L. Fayard; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; Giorgio V Goggi; C. Gössling; R. Hahn; H Hanni; John Renner Hansen
Archive | 1985
P. Bagnaia; M. Banner; R. Battiston; P. Bloch; K Borer; M. Borghini; J. Bürger; P. Cenci; J C Chollet; A.G. Clark; C Conta; Pierre Darriulat; Luigi Di Lella; J Dines-Hansen; R. Engelmann; L. Fayard; M Fraternali; Daniel Froidevaux; Jean-Marc Gaillard; O. Gildemeister; Giorgio V Goggi; C. Gössling; R. Hahn; H Hanni; John Renner Hansen; P. Hansen; N. Harnew; T. Himel; P. Jenni; Otto Mogens Kofoed-Hansen