학술논문
Measurement of inclusive charged-particle jet production in pp and p-Pb collisions at sNN = 5.02 TeV
Document Type
Original Paper
Author
Source
Journal of High Energy Physics. 2024(5)
Subject
Language
English
ISSN
1029-8479
Abstract
Abstract: Measurements of inclusive charged-particle jet production in pp and p-Pb collisions at center-of-mass energy per nucleon-nucleon collision sNNRpPbchjetpT,jetchpT,jetchRpPbchjetpT,jetchsNN = 5.02 TeV and the corresponding nuclear modification factor sNNRpPbchjetpT,jetchpT,jetchRpPbchjetpT,jetchsNN are presented, using data collected with the ALICE detector at the LHC. Jets are reconstructed in the central rapidity region |ηjet | < 0.5 from charged particles using the anti-kT algorithm with resolution parameters R = 0.2, 0.3, and 0.4. The pT -differential inclusive production cross section of charged-particle jets, as well as the corresponding cross section ratios, are reported for pp and p-Pb collisions in the transverse momentum range 10 T range of the previously-reported charged-particle jet measurements by the ALICE Collaboration. The nuclear modification factor is found to be consistent with one and independent of the jet resolution parameter with the improved precision of this study, indicating that the possible influence of cold nuclear matter effects on the production cross section of charged-particle jets in p-Pb collisions at sNNRpPbchjetpT,jetchpT,jetchRpPbchjetpT,jetchsNN = 5.02 TeV is smaller than the current precision. The obtained results are in agreement with other minimum bias jet measurements available for RHIC and LHC energies, and are well reproduced by the NLO perturbative QCD Powheg calculations with parton shower provided by Pythia8 as well as by Jetscape simulations.