. "Jeitler, M." . "Friedl, M." . . . . "RIV/00216208:11320/13:10188944!RIV14-MSM-11320___" . . "1434-6044" . "Hoermann, N." . "81835" . "qcd; lhc; cms; pp collisions; jet; physics"@en . "Jet and underlying event properties as a function of charged-particle multiplicity in proton-proton collisions at root s=7 TeV"@en . "Fruehwirth, R." . "25"^^ . . . "Finger, Miroslav" . "12" . . "Fabjan, C." . "Bergauer, T." . "RIV/00216208:11320/13:10188944" . "http://dx.doi.org/10.1140/epjc/s10052-013-2674-5" . "11320" . "Finger, Michael" . "Sirunyan, A. M." . "Jet and underlying event properties as a function of charged-particle multiplicity in proton-proton collisions at root s=7 TeV" . "DE - Spolkov\u00E1 republika N\u011Bmecko" . . . "Ghete, V. M." . . . "73" . "Eroe, J." . "Characteristics of multi-particle production in proton-proton collisions at root s = 7 TeV are studied as a function of the charged-particle multiplicity, N (ch). The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |eta|< 2.4 and transverse momentum p (T)> 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have p (T)> 5 GeV/c. The distributions of jet p (T), average p (T) of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of N (ch) and compared to the predictions of the pythia and herwig event generators. Predictions without multi-parton interactions fail completely to describe the N (ch)-dependence observed in the data. For increasing N (ch), pythia systematically predicts higher jet rates and harder p (T) spectra than seen in the data, whereas herwig shows the opposite trends. At the highest multiplicity, the data-model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients."@en . "[BA17DCDC0356]" . "European Physical Journal C" . . "2224"^^ . "Adam, W." . . . "Tumasyan, A." . "Khachatryan, V." . . "10.1140/epjc/s10052-013-2674-5" . "Characteristics of multi-particle production in proton-proton collisions at root s = 7 TeV are studied as a function of the charged-particle multiplicity, N (ch). The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |eta|< 2.4 and transverse momentum p (T)> 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have p (T)> 5 GeV/c. The distributions of jet p (T), average p (T) of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of N (ch) and compared to the predictions of the pythia and herwig event generators. Predictions without multi-parton interactions fail completely to describe the N (ch)-dependence observed in the data. For increasing N (ch), pythia systematically predicts higher jet rates and harder p (T) spectra than seen in the data, whereas herwig shows the opposite trends. At the highest multiplicity, the data-model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients." . . "2"^^ . "Hrubec, J." . "I, P(LA08015), P(LG13031)" . "Jet and underlying event properties as a function of charged-particle multiplicity in proton-proton collisions at root s=7 TeV" . . . "Dragicevic, M." . . "Jet and underlying event properties as a function of charged-particle multiplicity in proton-proton collisions at root s=7 TeV"@en . "000328342400001" . . . "Chatrchyan, S." .