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Analysis of Identified Particle Transverse Momentum Spectra Produced in pp, p–Pb and Pb–Pb Collisions at the LHC Using TP-like Function

Authors :
Pei-Pin Yang
Mai-Ying Duan
Fu-Hu Liu
Raghunath Sahoo
Source :
Symmetry, Vol 14, Iss 8, p 1530 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

In the framework of a multi-source thermal model at the partonic level, we have analyzed transverse momentum spectra of hadrons measured by the ALICE Collaboration in proton–proton (pp or p–p) collisions at the center-of-mass energy of s=7 and 13 TeV, proton–lead (p–Pb) collisions at sNN=5.02 TeV, and lead–lead (Pb–Pb) collisions at sNN=2.76 TeV. For mesons (baryons), the contributions of two (three) constituent quarks are considered, in which each quark contributes to hadron transverse momentum to obey the revised phenomenological Tsallis transverse momentum distribution for Maxwell–Boltzmann particles (the TP-like function, in short) with isotropic random azimuthal angles. Three main parameters, namely, the revised index a0, effective temperature T, and entropy-related index n, are obtained, showing the same tendency for both small and large systems with respect to the centrality (or multiplicity) of events, the rest mass of hadrons, and the constituent mass of quarks.

Details

Language :
English
ISSN :
20738994
Volume :
14
Issue :
8
Database :
Directory of Open Access Journals
Journal :
Symmetry
Publication Type :
Academic Journal
Accession number :
edsdoj.438786abbbe74d96aac03634528c41a3
Document Type :
article
Full Text :
https://doi.org/10.3390/sym14081530