Charged jet production cross sections in p–Pb collisions at √sNN = 5.02 TeV measured with the ALICE detector at the LHC are presented. Using the anti-kT algorithm, jets have been reconstructed in the central rapidity region from charged particles with resolution parameters R = 0.2 and R = 0.4. The reconstructed jets have been corrected for detector effects and the underlying event background. To calculate the nuclear modification factor, RpPb, of charged jets in p–Pb collisions, a pp reference was constructed by scaling previously measured charged jet spectra at √ s = 7 TeV. In the transverse momentum range 20 ≤ pT, ch jet ≤ 120 GeV/c, RpPb is found to be consistent with unity, indicating the absence of strong nuclear matter effects on jet production. Major modifications to the radial jet structure are probed via the ratio of jet production cross sections reconstructed with the two different resolution parameters. Thiss = 7 TeV and to the expectations © 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open ratio is found to be similar to the measurement in pp collisions at √s = 7 TeV and to the expectations from PYTHIA simulations and NLO pQCD calculations at √s = 5.02 TeV.

Measurement of charged jet production cross sections and nuclear modification in p-Pb collisions at sNN=5.02 TeV

BEOLE', Stefania;BERZANO, DARIO CARLO DOMENICO;Bianchi, L.;BOTTA, Elena;CORRALES MORALES, YASSER;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;LATTUCA, ALESSANDRA;LEONCINO, MARCO;MARCHISONE, MASSIMILIANO;MASERA, Massimo;PUCCIO, MAXIMILIANO;RUSSO, RICCARDO;Trogolo, S.;VALLERO, Sara;VERCELLIN, Ermanno;
2015-01-01

Abstract

Charged jet production cross sections in p–Pb collisions at √sNN = 5.02 TeV measured with the ALICE detector at the LHC are presented. Using the anti-kT algorithm, jets have been reconstructed in the central rapidity region from charged particles with resolution parameters R = 0.2 and R = 0.4. The reconstructed jets have been corrected for detector effects and the underlying event background. To calculate the nuclear modification factor, RpPb, of charged jets in p–Pb collisions, a pp reference was constructed by scaling previously measured charged jet spectra at √ s = 7 TeV. In the transverse momentum range 20 ≤ pT, ch jet ≤ 120 GeV/c, RpPb is found to be consistent with unity, indicating the absence of strong nuclear matter effects on jet production. Major modifications to the radial jet structure are probed via the ratio of jet production cross sections reconstructed with the two different resolution parameters. Thiss = 7 TeV and to the expectations © 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open ratio is found to be similar to the measurement in pp collisions at √s = 7 TeV and to the expectations from PYTHIA simulations and NLO pQCD calculations at √s = 5.02 TeV.
2015
749
68
81
http://www.sciencedirect.com/science/journal/03702693
Nuclear and High Energy Physics, charged jet production cross section, nuclear modification factor, p-Pb collisions
Adam, J.; Adamová, D.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahn, S. U.; Aimo, I.; Aiola, S.; Ajaz, M.; Akindin...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1559333
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