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The Tsallis entropy, which possesses non-extensive property, is derived from the first principle employing the non-extensive Hamiltonian or the $q$-deformed Hamiltonian with the canonical ensemble assumption in statistical mechanics. Here,…

统计力学 · 物理学 2025-03-11 Paradon Krisut , Sikarin Yoo-Kong

The Tsallis statistics was applied to describe the experimental data on the transverse momentum distributions of hadrons. We considered the energy dependence of the parameters of the Tsallis-factorized statistics, which is now widely used…

核理论 · 物理学 2017-03-16 A. S. Parvan

A study of the effects of non-extensivity on the modelling of atomic physics in hot dense plasmas is proposed within Tsallis' statistics. The electronic structure of the plasma is calculated through an average-atom model based on the…

等离子体物理 · 物理学 2015-05-30 Jean-Christophe Pain , Denis Teychenné , Franck Gilleron

The mid-rapidity transverse-momentum spectra of charmed meson in Pb-Pb and pp($\overline{\text{p}}$) collisions are analyzed by Tsallis-Pareto distribution derived from non-extensive statistics. We perform uniform descriptions for both…

高能物理 - 实验 · 物理学 2021-10-12 Yuan Su , Xiaolong Chen , Yongjie Sun , Yifei Zhang

Numerous papers have appeared recently showing fits to transverse momentum ($p_T$) spectra measured at the Large Hadron Collider (LHC) in proton - proton collisions.This talk focuses on the fits extending to very large values of the…

高能物理 - 唯象学 · 物理学 2017-03-08 J. Cleymans

The latest, high-accuracy identified hadron spectra measurements in high-energy nuclear collisions led us to the investigation of the strongly interacting particles and collective effects in small systems. Since microscopical processes…

高能物理 - 唯象学 · 物理学 2018-03-14 Gábor Bíró , Gergely Gábor Barnaföldi , Tamás Sándor Biró , Keming Shen

It has been recently noticed that transverse momenta ($p_T$) distributions observed in high energy production processes exhibit remarkably universal scaling behavior. This is seen when they are in some suitable variable, replacing the usual…

高能物理 - 唯象学 · 物理学 2015-04-03 M. Rybczynski , Z. Wlodarczyk , G. Wilk

The non extensive statistics proposed by C. Tsallis has found wide applicability, being present even in the description of experimental data from high energy collisions. A system with a fractal structure in its energy-momentum space, named…

高能物理 - 唯象学 · 物理学 2018-02-08 Airton Deppman

For a general, associative addition rule defining a non-extensive thermodynamics we construct the strict monotonic function, which transforms it to an additive quantity. We investigate the evolution of one-particle distributions in the…

高能物理 - 唯象学 · 物理学 2009-11-11 T. S. Biro , G. Purcsel

A systematic analysis of transverse momentum and rapidity distributions measured in high-energy proton - proton (pp) collisions for energies ranging from 53 GeV to 7 TeV using Tsallis thermodynamics is presented. The excellent description…

高能物理 - 唯象学 · 物理学 2015-06-23 L. Marques , J. Cleymans , A. Deppman

We analyze how can some dynamical process lead to (almost) exponential distribution of hadrons without instantaneous equipartition with a heat bath. We present a model for parton dressing whic re-combines the exponential from cut power law…

高能物理 - 唯象学 · 物理学 2007-05-23 Tamas S. Biro , Gabor Purcsel , Berndt Muller

We use a thermodynamically consistent form of Tsallis distribution to study the dependence of various thermodynamic quantities on the system size in high-energy collisions. The charged hadron spectra obtained in $p$+$p$, $p$+Pb, Xe+Xe, and…

高能物理 - 唯象学 · 物理学 2024-01-25 Rishabh Sharma , Krishan Gopal , Sharang Rav Sharma , Chitrasen Jena

The foundations for a thermo-statistical description of the called non extensive Hamiltonian systems are reconsidered. The relevance of the parametric resonance as a fundamental mechanism of the Hamiltonian chaoticity in those systems with…

统计力学 · 物理学 2007-05-23 L. Velazquez , F. Guzman

Hadron yields in high energy heavy ion collisions have been fitted and reproduced by thermal models using standard statistical distributions. These models give insight into the freeze-out conditions at varying beam energies. In this paper…

高能物理 - 唯象学 · 物理学 2010-01-15 J. Cleymans , G. Hamar , P. Levai , S. Wheaton

The transverse momentum ($p_T$) spectra from heavy-ion collisions at intermediate momenta are described by non-extensive statistical models. Assuming a fixed relative variance of the temperature fluctuating event by event or alternatively a…

高能物理 - 唯象学 · 物理学 2018-01-17 Keming Shen , Tamas S. Biro , Enke Wang

We present a study of transverse momentum ($p_{T}$) spectra of unidentified charged particles in pp collisions at RHIC and LHC energies from $\sqrt{s}$ = 62.4 GeV to 13 TeV using Tsallis/Hagedorn function. The power law of Tsallis/Hagedorn…

高能物理 - 唯象学 · 物理学 2018-03-14 Kapil Saraswat , Prashant Shukla , Venktesh Singh

The nonextensive statistical ensembles are revisited for the complex systems with long-range interactions and long-range correlations. An approximation, the value of nonextensive parameter (1-q) is assumed to be very tiny, is adopted for…

统计力学 · 物理学 2020-02-26 Yahui Zheng , Jiulin Du , Linxia Liu , Huijun Kong

Changes in the transverse momentum distributions with beam energy are studied using the Tsallis distribution as a parameterization. The dependence of the Tsallis parameters q, T and the volume are determined as a function of beam energy.…

高能物理 - 唯象学 · 物理学 2015-06-15 J. Cleymans , G. I. Lykasov , A. S. Parvan , A. S. Sorin , O. V. Teryaev , D. Worku

We investigated evolution of metric and density perturbations for Tsallis model of holographic dark energy with energy density $\sim L^{2\gamma - 4}$, where $L$ is length of event horizon or inverse Hubble parameter and $\gamma$ is…

广义相对论与量子宇宙学 · 物理学 2025-08-25 Artyom V. Astashenok , Alexander S. Tepliakov

In this work we make use of the Nambu-Jona-Lasinio model to investigate thermodynamic properties of magnetized three-flavor quark matter. The non-equilibrium Tsallis distribution is characterized by a dimensionless non-extensive parameter…

高能物理 - 唯象学 · 物理学 2024-11-01 Jia Zhang , Xin-Jian Wen