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It is shown that the chemical freeze-out parameters obtained at CERN/SPS, BNL/AGS and GSI/SIS energies all correspond to a unique value of 1 GeV per hadron in the local rest frame of the system, independent of the beam energy and of the…

Nuclear Theory · Physics 2009-10-31 J. Cleymans , K. Redlich

Attention is drawn to the role played by the size of the system in the thermodynamic analysis of particle yields in relativistic heavy ion collisions at SIS energies. This manifests itself in the non-linear dependence of K+ and K- yields in…

Nuclear Theory · Physics 2011-05-05 J. Cleymans , H. Oeschler , K. Redlich

This contribution focuses on the results of statistical model calculations at RHIC energies, including recently available experimental data. Previous calculations of particle yield ratios showed good agreement with measurements at SPS and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Daniel Magestro

It is shown that the freezeout parameters estimated in the heavy-ion collisions all are well described by a constant value of the entropy density $s$ divided by $T^3$. The value of $s/T^3$ has been taken from the lattice QCD simulations at…

High Energy Physics - Phenomenology · Physics 2009-11-11 A. Tawfik

We present an analysis of particle production yields measured in central Au-Au collisions at RHIC in the framework of the statistical thermal model. We demonstrate that the model extrapolated from previous analyses at SPS and AGS energy is…

High Energy Physics - Phenomenology · Physics 2009-11-07 P. Braun-Munzinger , D. Magestro , K. Redlich , J. Stachel

An expanding fireball model with two freeze-outs, which assumes that the chemical freeze-out occurs earlier at higher temperature and the thermal freeze-out occurs later at lower temperature, is developed and successfully applied to fit…

Nuclear Theory · Physics 2015-05-28 Suk Choi , Kang Seog Lee

We discuss several possible caveats which arise with the interpretation of measurements of fluctuations in heavy ion collisions. We especially focus on the ratios of particle yields, which has been advocated as a possible signature of a…

Nuclear Theory · Physics 2011-08-04 Michael Hauer , Sascha Vogel

Chemical non-equilibrium version of the statistical hadronization model combined with a single-freeze-out scenario is used to analyze the transverse-momentum spectra of pions, kaons and protons produced in heavy-ion collisions at sqrt(sNN)…

Nuclear Theory · Physics 2014-07-22 Viktor Begun , Wojciech Florkowski , Maciej Rybczynski

Posterior distributions for physical parameters describing relativistic heavy-ion collisions, such as the viscosity of the quark-gluon plasma, are extracted through a comparison of hydrodynamic-based transport models to experimental results…

Nuclear Theory · Physics 2015-06-15 John Novak , Kevin Novak , Scott Pratt , J. Vredevoogd , Chris Coleman-Smith , Robert Wolpert

The grand-canonical version of the thermal model is used to analyze the ratios of particle abundances measured in ultra-relativistic heavy-ion collisions. Exactly the same model is applied to study the heavy-ion reactions at BNL AGS, CERN…

Nuclear Theory · Physics 2007-05-23 Mariusz Michalec

A brief introduction to the statistical hadronization approach to particle production in relativistic heavy-ion collisions is given. In the context of fluid dynamics modeling various aspects of hadron emission at the freeze-out are…

Nuclear Theory · Physics 2022-07-13 Radoslaw Ryblewski

Popular parameterizations of the freeze-out conditions in relativistic heavy-ion collisions are discussed. Similarities and differences between the blast-wave model and the single-freeze-out model, both used recently to interpret the RHIC…

Nuclear Theory · Physics 2007-05-23 Wojciech Florkowski , Wojciech Broniowski

Recent experimental data support the presence of quark coalescence in heavy ion collisions at RHIC energies. Hadronization of quark matter and hadron formation in heavy ion collisions can be described by the coalescence process, and…

Nuclear Theory · Physics 2008-11-26 G. Hamar , L. L. Zhu , P. Csizmadia , P. Levai

We investigate systematics of the freezeout surface in heavy ion collisions due to the hadron spectrum. The role of suspected resonance states that are yet to be confirmed experimentally in identifying the freezeout surface has been…

Nuclear Theory · Physics 2017-11-16 Sandeep Chatterjee , Debadeepti Mishra , Bedangadas Mohanty , Subhasis Samanta

Particle yields in heavy ion collisions show an overwhelming evidence for chemical or relative chemical equilibrium at all beam energies. The rapidity dependence of the thermal parameters $T$ and $\mu_B$ can now be determined over a wide…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Becattini , J. Cleymans

In framework of statistical models, different particle ratios at energies ranging from $3.5 $ to $200 $GeV are calculated. Assuming that the particle production takes place along the freeze-out curve, we study the sharp peak in $K^+/\pi^+$…

High Energy Physics - Phenomenology · Physics 2010-01-05 A. Tawfik

We apply the Bayesian model selection method (based on the Bayes factor) to optimize $\sqrt{s_\mathrm{NN}}$-dependence in the phenomenological parameters of the (3+1)-dimensional hybrid framework for describing relativistic heavy-ion…

Nuclear Theory · Physics 2026-03-02 Syed Afrid Jahan , Hendrik Roch , Chun Shen

We extend the study of hadron yield correlation in combination models in a recent publication to baryon-anti-baryon flavor correlations in heavy ion collisions. We show that the universal behaviors of the anti-baryon to baryon yield ratios…

High Energy Physics - Phenomenology · Physics 2014-08-06 Rui-qin Wang , Feng-lan Shao , Zuo-tang Liang

We systematically compare an event-by-event heavy-ion collision model to data from the Large Hadron Collider. Using a general Bayesian method, we probe multiple model parameters including fundamental quark-gluon plasma properties such as…

We investigate the influence of global rotation on the chemical freeze-out parameters in ultra-relativistic heavy-ion collisions. Within the framework of the hadron resonance gas (HRG) model, the freeze-out parameters are determined using…

High Energy Physics - Phenomenology · Physics 2026-03-31 Nandita Padhan , Kshitish Kumar Pradhan , Arghya Chatterjee , Raghunath Sahoo
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