학술논문
Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s = 5.02 and 13 TeV
Document Type
Original Paper
Author
Source
Journal of High Energy Physics. 2023(6)
Subject
Language
English
ISSN
1029-8479
Abstract
Abstract: The measurement of the production of charm jets, identified by the presence of a D0 meson in the jet constituents, is presented in proton–proton collisions at centre-of-mass energies of sz‖chz‖chs = 5.02 and 13 TeV with the ALICE detector at the CERN LHC. The D0 mesons were reconstructed from their hadronic decay D0 → K− π+ and the respective charge conjugate. Jets were reconstructed from D0 -meson candidates and charged particles using the anti-kT algorithm, in the jet transverse momentum range 5 < pT,chjet < 50 GeV/c, pseudorapidity |ηjet | < 0.9 − R, and with the jet resolution parameters R = 0.2, 0.4, 0.6. The distribution of the jet momentum fraction carried by a D0 meson along the jet axis sz‖chz‖chs was measured in the range 0.4 T,chjet. Measurements were also done for R = 0.3 at sz‖chz‖chs = 5.02 and are shown along with their comparisons to theoretical predictions in an appendix to this paper.