The transverse momentum (pT ) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p þ Pb collisions at sNN 1⁄4 5:02 TeV with the ALICE detector at the LHC. The pT spectra measured near central rapidity in the range 0:5 < pT < 20 GeV=c exhibit a weak pseudo- rapidity dependence. The nuclear modification factor RpPb is consistent with unity for pT above 2 GeV=c. This measurement indicates that the strong suppression of hadron production at high pT observed in Pb þ Pb collisions at the LHC is not due to an initial-state effect. The measurement is compared to theoretical calculations.

Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p+Pb Collisions at sqrt[s_{NN}]=5.02  TeV

BEOLE', Stefania;BERZANO, DARIO CARLO DOMENICO;L. Bianchi;BOTTA, Elena;BRUNA, ELENA;BUFALINO, STEFANIA;CORRALES MORALES, YASSER;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;INNOCENTI, GIAN MICHELE;MARCHISONE, MASSIMILIANO;MASERA, Massimo;MILANO, LEONARDO;OPPEDISANO, Chiara;RAMELLO, Luciano;RUSSO, RICCARDO;SCOMPARIN, ENRICO;SITTA, Mario;VALLERO, Sara;VERCELLIN, Ermanno;
2013-01-01

Abstract

The transverse momentum (pT ) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p þ Pb collisions at sNN 1⁄4 5:02 TeV with the ALICE detector at the LHC. The pT spectra measured near central rapidity in the range 0:5 < pT < 20 GeV=c exhibit a weak pseudo- rapidity dependence. The nuclear modification factor RpPb is consistent with unity for pT above 2 GeV=c. This measurement indicates that the strong suppression of hadron production at high pT observed in Pb þ Pb collisions at the LHC is not due to an initial-state effect. The measurement is compared to theoretical calculations.
2013
110
082302
082302
B. Abelev;J. Adam;D. Adamová;A. M. Adare;M. M. Aggarwal;G. Aglieri Rinella;M. Agnello;A. G. Agocs;A. Agostinelli;Z. Ahammed;N. Ahmad;A. Ah...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/138820
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