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Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV

null, null
•
Acharya, S.
•
Adamová, D.
altro
Zurlo, N.
2023
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
The fractions of non-prompt (i.e. originating from beauty-hadron decays) D0 and D+ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy of √s= 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (pT) and integrated in the range 1 <24 GeV/c. The fraction of non-prompt D0 and D+ mesons is found to increase slightly as a function of pT in all the measured multiplicity intervals, while no significant dependence on the charged-particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion.
DOI
10.1007/jhep10(2023)092
WOS
WOS:001092683400001
Archivio
https://hdl.handle.net/11368/3096516
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85175832394
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
Soggetti
  • Hadron-Hadron Scatter...

  • Heavy Quark Productio...

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