On J/psi and transverse momentum distributions in high energy collisions

TL;DR

This paper investigates J/psi meson and transverse momentum distributions in high-energy collisions using Tsallis statistics, successfully matching experimental data and extracting key physical parameters of the collision system.

Contribution

It introduces a framework integrating Tsallis statistics into particle-production models for J/psi and transverse momentum distributions in high-energy collisions.

Findings

Good agreement with LHC experimental data

Extraction of emission source temperature

Determination of the system's nonequilibrium degree

Abstract

The transverse momentum distributions of final-state particles are very important for high-energy collision physics. In this work, we investigate and meson distributions in the framework of a particle-production source, where Tsallis statistics are consistently integrated. The results are in good agreement with the experimental data of proton-proton ( ) and proton-lead ( -Pb) collisions at LHC energies. The temperature of the emission source and the nonequilibrium degree of the collision system are extracted.