Measurements of inclusive jet production are performed in pp and Pb+Pb collisions at sqrt(sNN)=2.76 TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 pb−1 and 0.14 nb−1, respectively. The jets are identified with the anti-kt algorithm with R=0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32<pT<500 GeV, and absolute rapidity |y|<2.1 and as a function of collision centrality. The nuclear modification factor, RAA, is evaluated and jets are found to be suppressed by approximately a factor of two in central collisions compared to pp collisions. The RAA shows a slight increase with pT and no significant variation with rapidity.
Measurements of the nuclear modification factor for jets in Pb+Pb collisions at sqrt(s_NN)=2.76 TeV with the ATLAS detector
GORINI, Edoardo;PRIMAVERA, Margherita;SPAGNOLO, Stefania Antonia;VENTURA, Andrea
2015-01-01
Abstract
Measurements of inclusive jet production are performed in pp and Pb+Pb collisions at sqrt(sNN)=2.76 TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 pb−1 and 0.14 nb−1, respectively. The jets are identified with the anti-kt algorithm with R=0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
