Measurement of inclusive charged-particle b-jet production in pp and p-Pb collisions at √SNN=5.02 TeV



Acharya, S, Adamova, D, Adler, A, Adolfsson, J, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU
et al (show 997 more authors) (2022) Measurement of inclusive charged-particle b-jet production in pp and p-Pb collisions at √SNN=5.02 TeV JOURNAL OF HIGH ENERGY PHYSICS, 2022 (1). 178-. ISSN 1126-6708, 1029-8479

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Abstract

A measurement of the inclusive b-jet production cross section is presented in pp and p-Pb collisions at sNN = 5.02 TeV, using data collected with the ALICE detector at the LHC. The jets were reconstructed in the central rapidity region |η| < 0.5 from charged particles using the anti-k<inf>T</inf> algorithm with resolution parameter R = 0.4. Identification of b jets exploits the long lifetime of b hadrons, using the properties of secondary vertices and impact parameter distributions. The p<inf>T</inf>-differential inclusive production cross section of b jets, as well as the corresponding inclusive b-jet fraction, are reported for pp and p-Pb collisions in the jet transverse momentum range 10 ≤ p<inf>T,ch jet</inf>≤ 100 GeV/c, together with the nuclear modification factor, RpPbb−jet. The analysis thus extends the lower p<inf>T</inf> limit of b-jet measurements at the LHC. The nuclear modification factor is found to be consistent with unity, indicating that the production of b jets in p-Pb at sNN = 5.02 TeV is not affected by cold nuclear matter effects within the current precision. The measurements are well reproduced by POWHEG NLO pQCD calculations with PYTHIA fragmentation. [Figure not available: see fulltext.].

Item Type: Article
Uncontrolled Keywords: Lepton-Nucleon Scattering (experiments)
Divisions: Faculty of Science & Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 13 May 2022 13:51
Last Modified: 16 Jun 2026 09:26
DOI: 10.1007/JHEP01(2022)178
Open Access URL: https://link.springer.com/article/10.1007/JHEP01(2...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3154747
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