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相关论文: Possible interrelations among chemical freezeout c…

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This dissertation examines the phenomenology of statistical hadronization at ultrarelativistic energies. We start with an overview of current experimental and theoretical issues in Relativistic heavy ion physics. We then introduce…

核理论 · 物理学 2009-09-29 Giorgio Torrieri

We investigate the difference between hadron resonance gas (HRG) calculations for chemical freeze-out parameters at fully and partly chemical equilibria. To this end, the results are compared with the particle ratios measured in central…

核理论 · 物理学 2015-08-20 Abdel Nasser Tawfik , M. Y. El-Bakry , D. M. Habashy , M. T. Mohamed , Ehab Abbas

We clarify in a quantitative way the impact that distinct chemical $T_c$ and kinetic $T_k$ freeze-out temperatures have on the reduction of the neutrino fugacity $\Upsilon_\nu$ below equilibrium, i.e. $\Upsilon_\nu<1$, and the increase of…

宇宙学与河外天体物理 · 物理学 2014-04-28 Jeremiah Birrell , Cheng-Tao Yang , Pisin Chen , Johann Rafelski

Here we thoroughly discuss some weak points of the thermal model which is traditionally used to describe the hadron multiplicities measured in the central nucleus-nucleus collisions. In particularly, the role of conservation laws, the…

高能物理 - 唯象学 · 物理学 2014-04-18 D. R. Oliinychenko , K. A. Bugaev , A. S. Sorin

The transverse momentum distributions measured in $p-p$ collisions at the LHC determine the kinetic freeze-out stage of the collision. The parameters deduced from these distributions differ from those determined at chemical freeze-out. The…

高能物理 - 唯象学 · 物理学 2020-10-13 J. Cleymans , M. W. Paradza

Several popular parameterizations of the freeze-out conditions in ultra-relativistic heavy-ion collisions are shortly reviewed. The common features of the models, responsible for the successful description of hadronic observables, are…

核理论 · 物理学 2009-11-11 Wojciech Florkowski

We present a summary of the recent results obtained with the novel hadron resonance gas model with the multicomponent hard-core repulsion which is extended to describe the mixtures of hadrons and light (anti-, hyper-)nuclei. A very accurate…

Like fluctuations, non-diagonal correlators of conserved charges provide a tool for the study of chemical freeze-out in heavy ion collisions. They can be calculated in thermal equilibrium using lattice simulations, and be connected to…

A Gribov-type dispersion relation is treated as an effective description of interacting gluons forming a hot medium. Temperature dependence of the Gribov parameter is determined from the fit to the lattice Yang-Mills results describing…

核理论 · 物理学 2017-03-24 Viktor Begun , Wojciech Florkowski , Radoslaw Ryblewski

Abundances and $m_\bot$-spectra of strange and other hadronic particles emanating from central 158-200 A GeV reactions between nuclei are found to originate from a thermally equilibrated, deconfined source in chemical non-equilibrium.…

高能物理 - 唯象学 · 物理学 2007-05-23 Johann Rafelski , Jean Letessier

We discuss details of our thermal model applied to extract chemical freeze-out conditions from fluctuations in the net-electric charge and net-proton number measured at RHIC. A parametrization for these conditions as a function of the beam…

高能物理 - 唯象学 · 物理学 2015-06-11 M. Bluhm , P. Alba , W. Alberico , R. Bellwied , V. Mantovani Sarti , M. Nahrgang , C. Ratti

The Pierre Auger Collaboration has reported an excess in the number of muons of a few tens of percent over expectations computed using extrapolation of hadronic interaction models tuned to accommodate LHC data. Very recently, we proposed an…

高能物理 - 唯象学 · 物理学 2018-11-20 Jorge F. Soriano , Luis A. Anchordoqui , Thomas C. Paul , Thomas J. Weiler

The present status of soft hadron production in high energy heavy-ion collisions is summarized. In spite of strong evidence for extensive dynamical evolution and collective expansion of the fireball before freeze-out I argue that its…

核理论 · 物理学 2009-10-09 Ulrich Heinz

It is shown that the partial temperatures of a homogeneous multicomponent gas mixture in the thermodynamical equilibrium cannot be equal to each other. New general solutions for equilibrium distribution functions of the multicomponent…

统计力学 · 物理学 2007-05-23 Yurii M. Loskutov

In recent years, Hagedorn states have been used to explain the equilibrium and transport properties of a hadron gas close to the QCD critical temperature. These massive resonances are shown to lower $\eta/s$ to near the AdS/CFT limit close…

核理论 · 物理学 2011-05-11 Carsten Greiner , Jacquelyn Noronha-Hostler , Jorge Noronha

Relativistic nucleus-nucleus collisions create a "fireball" of strongly interacting matter at high energy density. At very high energy this is suggested to be partonic matter, but at lower energy it should consist of yet unknown hadronic,…

高能物理 - 唯象学 · 物理学 2007-05-23 Reinhard Stock

Within the model of partial chemical equilibrium (PCE) we calculate the multiplicity ratios of selected unstable resonances to given stable species. We focus on those ratios that have been measured either in Pb+Pb collisions at the LHC or…

核理论 · 物理学 2025-01-22 Boris Tomasik , Sandor Lokos

We propose a general framework to compare the values of a physical quantity pertaining to two - or more - physical setups, in the finite-precision scenario. Such a situation requires us to compare between two "patches" on the real line…

量子物理 · 物理学 2025-10-29 Anindita Sarkar , Paranjoy Chaki , Priya Ghosh , Ujjwal Sen

We used the modified Hagedron function and analyzed the experimental data measured by the BRAHMS, STAR, PHENIX and ALICE Collaborations in Copper-Copper, Gold-Gold, deuteron-Gold, Lead-Lead, proton-Lead and proton-proton collisions, and…

高能物理 - 唯象学 · 物理学 2021-11-17 Muhammad Waqas , Lu-Meng Liu , Guang-Xiong Peng , Muhammad Ajaz

A thermodynamically consistent excluded volume model is proposed to account for the particle multiplicities obtained from lowest SIS energies to the highest RHIC energies. The chemical freeze-out volumes lying in a slice of one unit of…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Mishra , C. P. Singh
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