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Measurement of the production of charm jets tagged with D0 mesons in pp collisions at √s = 5.02 and 13 TeV

Acharya, S. ; Basu, S. LU orcid ; Christiansen, P. LU ; Matonoha, O. LU ; Nassirpour, A.F. LU orcid ; Ohlson, A. LU ; Oskarsson, A. LU ; Richert, T. LU ; Rueda, O.V. LU and Silvermyr, D. LU orcid , et al. (2023) In Journal of High Energy Physics 2023(6).
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 s = 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-k T algorithm, in the jet transverse momentum range 5 < p T,chjet < 50 GeV/c, pseudorapidity |η jet| < 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 (z‖ch) was measured in the range 0.4 <... (More)
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 s = 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-k T algorithm, in the jet transverse momentum range 5 < p T,chjet < 50 GeV/c, pseudorapidity |η jet| < 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 (z‖ch) was measured in the range 0.4 < z‖ch < 1.0 in four ranges of the jet transverse momentum. Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low p T,chjet. Measurements were also done for R = 0.3 at s = 5.02 and are shown along with their comparisons to theoretical predictions in an appendix to this paper. [Figure not available: see fulltext.]. © 2023, The Author(s). (Less)
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type
Contribution to journal
publication status
published
subject
keywords
Hadron-Hadron Scattering, Heavy Quark Production, Jets
in
Journal of High Energy Physics
volume
2023
issue
6
article number
133
publisher
Springer
external identifiers
  • scopus:85163026323
ISSN
1029-8479
DOI
10.1007/JHEP06(2023)133
language
English
LU publication?
yes
id
7f665a03-7997-4aac-bc01-1f4d7f140590
date added to LUP
2023-11-22 13:59:54
date last changed
2023-11-22 13:59:54
@article{7f665a03-7997-4aac-bc01-1f4d7f140590,
  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 s = 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-k T algorithm, in the jet transverse momentum range 5 &lt; p T,chjet &lt; 50 GeV/c, pseudorapidity |η jet| &lt; 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 (z‖ch) was measured in the range 0.4 &lt; z‖ch &lt; 1.0 in four ranges of the jet transverse momentum. Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low p T,chjet. Measurements were also done for R = 0.3 at s = 5.02 and are shown along with their comparisons to theoretical predictions in an appendix to this paper. [Figure not available: see fulltext.]. © 2023, The Author(s).}},
  author       = {{Acharya, S. and Basu, S. and Christiansen, P. and Matonoha, O. and Nassirpour, A.F. and Ohlson, A. and Oskarsson, A. and Richert, T. and Rueda, O.V. and Silvermyr, D. and Staa, J. and Zurlo, N.}},
  issn         = {{1029-8479}},
  keywords     = {{Hadron-Hadron Scattering; Heavy Quark Production; Jets}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Measurement of the production of charm jets tagged with D0 mesons in pp collisions at √s = 5.02 and 13 TeV}},
  url          = {{http://dx.doi.org/10.1007/JHEP06(2023)133}},
  doi          = {{10.1007/JHEP06(2023)133}},
  volume       = {{2023}},
  year         = {{2023}},
}