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相关论文: Thermodynamic limit in high-multiplicity $pp$ coll…

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We present an overview of a proposal in relativistic proton-proton ($pp$) collisions emphasizing the thermal or kinetic freeze-out stage in the framework of the Tsallis distribution. In this paper we take into account the chemical potential…

高能物理 - 唯象学 · 物理学 2021-01-26 J. Cleymans , M. W. Paradza

The temperature at the chemical freeze-out and at zero baryochemical potential has been extracted in a global analysis of $e^+e^-$, $p+p$, $p+ \overline{p}$ and $A+A$ collisions at $\sqrt{s}$=2-1800 GeV per N+N pair. We demonstrate that the…

高能物理 - 唯象学 · 物理学 2007-05-23 Sonja Kabana

We study the hot medium effects in high-multiplicity proton-proton (pp) collisions at $\sqrt{s_{NN}}=13$ TeV via the charmonium probes. The hot medium is described with the hydrodynamic model, while charmonium evolutions in the medium are…

核理论 · 物理学 2024-11-25 Yunfan Bai , Baoyi Chen

The transverse momentum spectra of identified particles at midrapidity in Pb + Pb collisions at Root(sNN) = 2.76 TeV have been studied as a function of collision centrality by using a unified statistical thermal freeze-out model. The…

高能物理 - 唯象学 · 物理学 2015-10-28 Saeed Uddin , Inam-ul Bashir , Riyaz Ahmed Bhat

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 assumption that the production of quark-antiquark pairs and their sequential string-breaking taking place through the event horizon of the color confinement determines freezeout temperature and gives a plausible interpretation of the…

综合物理 · 物理学 2017-01-17 Abdel Nasser Tawfik , Hayam Yassin , Eman R. Abo Elyazeed

We analyse the transverse momentum $p_{\mathrm{T}}$ spectra of strange particles \Kslxi produced in $\textsf{Pb+Pb}$ collision at $\sqrt{s_{NN}}= 2.76$ TeV, $\textsf{p+Pb}$ collision at $\sqrt{s_{NN}}= 5.02$ TeV, and $\textsf{p+p}$…

高能物理 - 唯象学 · 物理学 2019-01-29 Hayam Yassin , Eman R. Abo Elyazeed

One of the main goals in the study of hadronic interactions at LHC energies is the attempt to characterize the mechanisms involved in particle production in different regimes. The charged-particle multiplicity is one of the most interesting…

高能物理 - 实验 · 物理学 2024-04-08 Alek Hutson

The non-equilibrium electron-positron-photon plasma thermalization process is studied using relativistic Boltzmann solver, taking into account quantum corrections both in non-relativistic and relativistic cases. Collision integrals are…

高能天体物理现象 · 物理学 2018-12-20 M. A. Prakapenia , I. A. Siutsou , G. V. Vereshchagin

We investigate the conditions under which particle multiplicities in high energy collisions are Boltzmann distributed, as is the case for hadron production in e^+e^-, pp, p-pbar and heavy ion collisions. We show that the apparent…

核理论 · 物理学 2009-11-06 James Hormuzdiar , Stephen D. H. Hsu , Gregory Mahlon

The pseudorapidity densities of transverse energy, the charged particle multiplicity and their ratios, $E_T/N_{ch}$, are estimated at mid-rapidity, in a statistical-thermal model based on chemical freeze-out criteria, for a wide range of…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Cleymans , R. Sahoo , D. P. Mahapatra , D K Srivastava , S. Wheaton

The NA44 experiment has measured single particle inclusive spectra for charged pions, kaons, and protons as a function of transverse mass near mid-rapidity in 158 A GeV/$c$ Pb+Pb collisions. From the particle mass dependence of the observed…

核实验 · 物理学 2012-08-27 The NA44 Collaboration

An alternative, to the commonly used blast-wave, model describing the freeze-out hypersurface is applied to fit the $p_{T}$-spectra of identified hadrons measured at relativistic heavy-ion collisions at $\sqrt{s_{NN}}=62.4, 130$ and 200…

核理论 · 物理学 2014-11-18 Dariusz Prorok

We analyze the relative yields of different bottomonia and charmonia states produced in Pb-Pb, p-Pb and high multiplicity p-p collisions at LHC, within a semi-classical grand canonical ensemble approach. The underlying assumption is the…

高能物理 - 唯象学 · 物理学 2023-06-28 Deekshit Kumar , Nachiketa Sarkar , Partha Pratim Bhaduri , Amaresh Jaiswal

The WA98 experiment at the CERN SPS measures Pb+Pb Collisions at 158 AGeV. The scaling properties of the charged particle multiplicity at midrapidity with the number of participants are studied using the SPMD and the MIRAC detector. Neutral…

核实验 · 物理学 2007-05-23 WA98 Collaboration , H. Schlagheck

In this paper I intend to show that macroscopic entanglement is possible at high temperatures. I analyze multipartite entanglement produced by the $\eta$ pairing mechanism which features strongly in the fermionic lattice models of high…

量子物理 · 物理学 2009-11-10 Vlatko Vedral

We analyse the transverse momentum ($p_{\rm T}$)-spectra as a function of charged-particle multiplicity at midrapidity ($|y| < 0.5$) for various identified particles such as $\pi^{\pm}$, $K^{\pm}$, $K_S^0$, $p+\overline{p}$, $\phi$, $K^{*0}…

高能物理 - 唯象学 · 物理学 2019-01-17 Arvind Khuntia , Himanshu Sharma , Swatantra Kumar Tiwari , Raghunath Sahoo , Jean Cleymans

One-dimensional systems, such as nanowires or electrons moving along strong magnetic field lines, have peculiar thermalization physics. The binary collision of point-like particles, typically the dominant process for reaching thermal…

原子物理 · 物理学 2024-07-10 M. Eltohfa , Xinghan Wang , Colton M. Griffin , F. Robicheaux

Using the most advanced formulation of the hadron resonance gas model we analyze the two sets of irregularities found at chemical freeze-out of central nuclear-nuclear collisions at the center of mass energies 3.8-4.9 GeV and 7.6-9.2 GeV.…

One considers the motion of a test particle in an homogeneous fluid in equilibrium at temperature $T$, undergoing dissipative collisions with the fluid particles. It is shown that the corresponding linear Boltzmann equation still posseses a…

统计力学 · 物理学 2007-05-23 Ph. A. Martin , J. Piasecki