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相关论文: Chemical freezeout parameters within generic nonex…

200 篇论文

We study a particle immersed in a heat bath, in the presence of an external force which decays at least as rapidly as $1/x$, for example a particle interacting with a surface through a Lennard-Jones or a logarithmic potential. As time…

统计力学 · 物理学 2019-01-09 Erez Aghion , David A. Kessler , Eli Barkai

In this paper, we have analyzed the nonextensive Tsallis statistical mechanics in the light of Verlinde's formalism. We have obtained, with the aid of a noncommutative phase-space entropic gravity, a new bound for Tsallis nonextensive (NE)…

高能物理 - 理论 · 物理学 2015-06-04 Everton M. C. Abreu , Jorge Ananias Neto , Albert C. R. Mendes , Wilson Oliveira

We investigate a kinetic model of a system in contact with several thermal reservoirs at different temperatures $T_\alpha$. Our system is a spatially uniform dilute gas whose internal dynamics is described by the nonlinear Boltzmann…

数学物理 · 物理学 2014-06-17 Eric A. Carlen , Joel L. Lebowitz , Clement Mouhot

One of the main goals of heavy-ion collision experiments is to study the structure of the QCD phase diagram. The QCD phase diagram is typically plotted as temperature ($T$) vs. baryon chemical potential ($\mu_{B}$). The statistical thermal…

核实验 · 物理学 2013-08-15 Lokesh Kumar

In this paper, we investigate the kinetic freeze-out properties in relativistic heavy ion collisions at different collision energies. We present a study of standard Boltzmann-Gibbs Blast-Wave (BGBW) fits and Tsallis Blast-Wave (TBW) fits…

核理论 · 物理学 2021-09-03 Jia Chen , Jian Deng , Zebo Tang , Zhangbu Xu , Li Yi

The multiplicity distribution of particles in relativistic gases is studied in terms of Tsallis' nonextensive statistics. For an entropic index q>1 the multiplicity distribution is wider than the Poisson distribution with the same average…

统计力学 · 物理学 2007-05-23 C. E. Aguiar , T. Kodama

The transverse momentum ($p_{\rm T}$) spectra in proton-proton collisions at $\sqrt{s}$ = 7 TeV, measured by the ALICE experiment at the LHC are analyzed with a thermodynamically consistent Tsallis distribution. The information about the…

高能物理 - 唯象学 · 物理学 2017-05-19 Arvind Khuntia , Sushanta Tripathy , Raghunath Sahoo , Jean Cleymans

Tsallis Statistics was used to investigate the non-Boltzmann distribution of particle spectra and their dependence on particle species and beam energy in the relativistic heavy-ion collisions at SPS and RHIC. Produced particles are assumed…

核实验 · 物理学 2010-12-02 Ming Shao , Li Yi , Zebo Tang , Hongfang Chen , Cheng Li , Zhangbu Xu

We analyze the dynamics of a Brownian gas in contact with a heat bath in which large temperature fluctuations occur. There are two distinct time scales present, one describes the decay of the fluctuations in the temperature and the other…

统计力学 · 物理学 2009-11-11 I. Santamaria-Holek , R. F. Rodriguez

By constructing the super-particle representation of the free boson gas, we propose a new statistics in which the particles are non-exclusive. This statistics can be considered as a generalization of Bose-Einstein's. The possible…

统计力学 · 物理学 2007-05-23 Yupeng Wang

In this paper, the particles of quantum gases, that is, bosons and fermions are regarded as g-ons which obey fractional exclusion statistics. With this point of departure the thermostatistical relations concerning the Bose and Fermi systems…

统计力学 · 物理学 2015-06-24 F. Buyukkilic , D. Demirhan , ;

The transverse momentum spectra of secondary pions and kaons, produced in $P+P$ and various central $Pb+Pb$ collisions at $\sqrt{s_{NN}}=2.76$ TeV at LHC, have been analyzed systematically with an approach based on Tsallis non-extensive…

核理论 · 物理学 2014-08-27 Bhaskar De

We present a possible extension of the usual relativistic nuclear mean field models widely used to describe nuclear matter towards accounting for the influence of possible intrinsic fluctuations caused by the environment. Rather than…

核理论 · 物理学 2011-04-29 J. Rozynek , G. Wilk

We investigate the possibility of discrete groups furnishing a kinematic framework for systems whose thermodynamic behaviour may be given by non-additive entropies. Relying on the well-known result of the growth rate of balls of nilpotent…

统计力学 · 物理学 2015-06-19 Nikos Kalogeropoulos

It is natural important question for us to ask what the nonextensive parameter stands for when Tsallis statistics is applied to the self-gravitating systems. In this paper, some properties of the nonextensive parameter and Tsallis…

适应与自组织系统 · 物理学 2015-08-10 Jiulin Du

We present an elaborate version of the hadron resonance gas model with the combined treatment of separate chemical freeze-outs for strange and non-strange hadrons and with an additional $\gamma_{s}$ factor which accounts for the remaining…

Preliminary experimental data for particle number ratios in the collisions of Au+Au at the BNL AGS (11$A$ GeV/$c$) and Pb+Pb at the CERN SPS (160$A$ GeV/$c$) are analyzed in a thermodynamically consistent hadron gas model with excluded…

核理论 · 物理学 2009-10-30 M. I. Gorenstein , H. Stoecker , G. D. Yen , S. N. Yang , W. Greiner

Consistent statistical physical description is given for systems where the elementary excitations are composite objects. Explicit calculational scheme is constructed for the energy density and the total number of thermodynamical degrees of…

高能物理 - 唯象学 · 物理学 2011-03-01 A. Jakovac

Non-extensive systems do not allow to go to the thermodynamic limit. Therefore we have to reformulate statistical mechanics without invoking the thermodynamical limit. I.e. we have to go back to Pre-Gibbsian times. We show that Boltzmann's…

统计力学 · 物理学 2007-05-23 D. H. E. Gross

The nonextensivity in a non-isothermal plasma system with the Coulombian long-range interactions is studied in the framework of Tsallis statistics. We present for first time a mathematical expression of the nonextensive parameter q based on…

统计力学 · 物理学 2015-08-10 Jiulin Du