Dependence of related parameters on centrality and mass in a new treatment for transverse momentum spectra in high energy collisions

Abstract

We collected the experimental data of transverse momentum spectra of identified particles produced in proton-proton ($p$-$p$), deuteron-gold ($d$-Au or $d$-$A$), gold-gold (Au-Au or $A$-$A$), proton-lead ($p$-Pb or $p$-$A$), and lead-lead (Pb-Pb or $A$-$A$) collisions measured by the ALICE, CMS, LHCb, NA49, NA61/SHINE, PHENIX, and STAR collaborations at different center-of mass energies. The multisource thermal model at the quark level or the participant quark model is used to describe the experimental data. The free parameters, the effective temperature $T$, entropy index-related $n$, and revised index $a_0$, in the revised Tsallis--Pareto-type function are extracted at the quark level. In most cases, $T$ and $n$ in central collisions are larger than those in peripheral collisions, and $a_0$ does not change in different centrality classes. With the increase in the mass of produced particle or participant quark, $T$ and $a_0$ increase, and $n$ does not change significantly. The behaviors of related parameters from $p$-$p$, $p(d)$-$A$, and $A$-$A$ collisions are similar.

arXiv comment34 pages, 16 figures. The European Physical Journal A, accepted

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Cited by in corpus (8)

• Excitation Functions of Tsallis-like Parameters in High-Energy Nucleus-Nucleus Collisions
• Extraction of different temperatures and kinetic freeze-out volume in high energy collisions
• Analyzing transverse momentum spectra by a new method in high-energy collisions
• Analysis of identified particle transverse momentum spectra produced in pp, p--Pb and Pb--Pb collisions at the LHC using Tsallis--Pareto-type function
• A systematic analysis of transverse momentum spectra of $J/\psi$ mesons in high energy collisions
• Hadron transverse momentum distributions in the Tsallis statistics with escort probabilities
• Multi-Source Thermal Model Describing Transverse Momentum Spectra of Final-State Particles in High Energy Collisions
• Statistical Behavior of Lepton Pair Spectrum in Drell-Yan Process and Signal from Quark-Gluon Plasma in High Energy Collisions