Rectorate / Rektörlük
Permanent URI for this collectionhttps://hdl.handle.net/11147/6849
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Article Citation - WoS: 26Citation - Scopus: 43Measurement of Bose-Einstein Correlations in Pp Collisions at √s = 0.9 and 7 Tev(Springer Verlag, 2011) Khachatryan,V.; Sirunyan,A.M.; Tumasyan,A.; Adam,W.; Bergauer,T.; Dragicevic,M.; Marchica,C.Bose-Einstein correlations between identical particles are measured in samples of proton-proton collisions at 0.9 and 7TeV centre-of-mass energies, recorded by the CMS experiment at the LHC. The signal is observed in the form of an enhancement of number of pairs of same-sign charged particles with small relative momentum. The dependence of this enhancement on kinematic and topological features of the event is studied. Anticorrelations between same-sign charged particles are observed in the region of relative momenta higher than those in the signal region.Article Citation - WoS: 62Citation - Scopus: 26Search for New Physics With Same-Sign Isolated Dilepton Events With Jets and Missing Transverse Energy at the Lhc(Springer Verlag, 2011) Chatrchyan,S.; Khachatryan,V.; Sirunyan,A.M.; Tumasyan,A.; Adam,W.; Bergauer,T.; Hintz,W.The results of searches for new physics in events with two same-sign isolated leptons, hadronic jets, and missing transverse energy in the final state are presented. The searches use an integrated luminosity of 35 pb -1 of pp collision data at a centre-of-mass energy of 7TeV collected by the CMS experiment at the LHC. The observed numbers of events agree with the standard model predictions, and no evidence for new physics is found. To facilitate the interpretation of our data in a broader range of new physics scenarios, information on our event selection, detector response, and efficiencies is provided. © CERN. © SISSA 2011.Article Citation - WoS: 77Citation - Scopus: 27Measurement of Energy Flow at Large Pseudorapidities in Pp Collisions at √s = 0:9 and 7 Tev(Springer Verlag, 2011) Chatrchyan,S.; Khachatryan,V.; Sirunyan,A.M.; Tumasyan,A.; Adam,W.; Bergauer,T.; Erdmann,W.The energy ow, dE=dη, is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7TeV. The measurements are made using the CMS detector in the pseudorapidity range 3:15 < |η| < 4:9, for both minimum-bias events and events with at least two high-momentum jets. The data are compared to various pp Monte Carlo event generators whose theoretical models and input parameter values are sensitive to the energy-ow measurements. Inclusion of multipleparton interactions in the Monte Carlo event generators is found to improve the description of the energy-ow measurements. © SISSA 2011.