Back to Search Start Over

The Novel Scaling of Tsallis Parameters from the Transverse Momentum Spectra of Charged Particles in Heavy-Ion Collisions

Authors :
Tao, J. Q.
Wu, W. H.
Wang, M.
Zheng, H.
Zhang, W. C.
Zhu, L. L.
Bonasera, A.
Source :
MDPI Particles 2022, 5, 146
Publication Year :
2022

Abstract

The transverse momentum $(p_T)$ spectra of charged particles measured in Au + Au collisions from the beam energy scan (BES) program, Cu + Cu collisions at $\sqrt{s_{NN}}=62.4$, 200 GeV at the RHIC and Pb + Pb, Xe + Xe collisions at the LHC are investigated in the framework of Tsallis thermodynamics. The theory can describe the experimental data well for all the collision systems, energies and centralities investigated. The collision energy and centrality dependence of the Tsallis distribution parameters, i.e., the temperature $T$ and the nonextensive parameter $q$, for the \mbox{A + A} collisions are also studied and discussed. A novel scaling between the temperature divided by the natural logarithm of collision energy $(T/\ln\sqrt{s})$ and the nonextensive parameter $q$ is presented.<br />Comment: 12 pages, 5 figures

Details

Database :
arXiv
Journal :
MDPI Particles 2022, 5, 146
Publication Type :
Report
Accession number :
edsarx.2206.12202
Document Type :
Working Paper
Full Text :
https://doi.org/10.3390/particles5020013