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Production of heavy flavored particles in $p p$ collisions: A unified model description for results of experimental measurements by ALICE and LHCb

Tonmoy Sharma ^*, Banajit Barman ^†, and Buddhadeb Bhattacharjee ^‡

Nuclear and Radiation Physics Research Laboratory, Department of Physics, Gauhati University, Guwahati, Assam 781014, India

^*Contact author: tonmoy.sharma@cern.ch
^†Contact author: banajit.barman@cern.ch
^‡Contact author: buddhadeb.bhattacharjee@cern.ch

Phys. Rev. C 113, 034918 – Published 24 March, 2026

DOI: https://doi.org/10.1103/sp93-wsth

Abstract

The study of heavy-flavored baryon and meson production in proton-proton (pp) collisions provides crucial insight into the hadronization mechanisms of quantum chromodynamics (QCD). In this work an attempt has been made to describe the existing ALICE and LHCb results on the $p_{T}$ -differential production cross section of $Λ_{c}^{+}, D^{0}, Λ_{b}^{0}$ , and ${\bar{B}}^{0}$ , and $p_{T}$ -dependent $Λ_{c}^{+} / D^{0}$ and $Λ_{b}^{0} / {\bar{B}}^{0} (B^{0})$ ratios, in light of the color-string junction inspired PYTHIA-8.314 model. A comparison of the results obtained with various event samples generated with different tuning parameters and the existing experimental results of ALICE and LHCb at $\sqrt{s} =$ 7 and 13 TeV underlines the relevance of string-junction dynamics in heavy-flavored particle production. The results of the present investigation reveal that while stopping the junction-antijunction reconfiguration in the nonperturbative PYTHIA-8.314 model successfully describes the considered ALICE experimental observables of the charm sector, on the other hand, allowing junction-antijunction reconfiguration, keeping other fragmentation parameters the same, better describes the LHCb experimental observables of both charm and bottom sectors.

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References (39)

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Phys. Rev. C 113, 034918– Published 24 March, 2026

Vol. 113, Iss. 3 — March 2026

Received 10 October 2025
Accepted 27 February 2026

DOI: https://doi.org/10.1103/sp93-wsth

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP³.

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Production of heavy flavored particles in $p p$ collisions: A unified model description for results of experimental measurements by ALICE and LHCb

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Production of heavy flavored particles in pp collisions: A unified model description for results of experimental measurements by ALICE and LHCb

Abstract

Physics Subject Headings (PhySH)

Article Text

Supplemental Material

References (39)

Production of heavy flavored particles in $p p$ collisions: A unified model description for results of experimental measurements by ALICE and LHCb