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We have estimated centrality variation of chemical freeze-out parameters from yield data at mid-rapidity of $\pi^\pm$, $K^\pm$ and $p$, $\bar{p}$ for collision energies of RHIC (Relativistic Heavy Ion Collider), Beam Energy Scan (RHIC-BES)…

High Energy Physics - Phenomenology · Physics 2021-04-29 Deeptak Biswas

Correlations of conserved charges, i.e., the baryon number, electric charge and the strangeness, have been calculated at finite temperature and chemical potential up to the fourth order. The calculations are done in a 2+1 flavor low energy…

High Energy Physics - Phenomenology · Physics 2021-05-26 Rui Wen , Wei-jie Fu

Results on strange particle production in Pb-Pb collisions at 158 and 40 $A$ GeV/$c$ beam momentum from the NA57 experiment at CERN SPS are presented. Particle yields and ratios are compared with those measured at RHIC. Strangeness…

Nuclear Experiment · Physics 2009-11-10 D. Elia

Particle number fluctuations and correlations in nucleus-nucleus collisions at SPS and RHIC energies have been studied within the Hadron-String-Dynamics (HSD) transport approach. Event-by-event fluctuations of pion-to-kaon, proton-to-pion…

Nuclear Theory · Physics 2014-11-20 V. P. Konchakovski , M. Hauer , M. I. Gorenstein , E. L. Bratkovskaya

The final state in The final state in heavy-ion collisions has a higher degree of strangeness saturation than the one produced in collisions between elementary particles like p-p or p-$\bar{p}$. A systematic analysis of this phenomenon is…

High Energy Physics - Phenomenology · Physics 2015-06-25 J. Cleymans , B. Kaempfer , P. Steinberg , S. Wheaton

The production and properties of the resonances with the strangeness S=+1 in the system of nK+ were studied in the reaction np->npK+K- at the momentum of incident neutrons Pn=(5.20 +/- 0.12)GeV/c. A number of peculiarities were found in the…

High Energy Physics - Experiment · Physics 2007-05-23 Yu. A. Troyan , A. V. Beljaev , A. Yu. Troyan , E. B. Plekhanov , A. P. Jerusalimov , S. G. Arakelian

We propose a non-equilibrium, hadronic kinetic model for describing the relative abundance of strange particles in ultra-relativistic heavy-ion collisions. The energy dependence of the multiplicity ratios of charged kaons and lambdas to…

Nuclear Theory · Physics 2007-05-23 Boris Tomasik , Evgeni E Kolomeitsev

Highly effective conversion of kinetic energy into abundant particle multiplicity is the remarkable feature discovered in high energy heavy ion collisions. This short and pedagogic review addresses topical issues related to the…

Nuclear Theory · Physics 2009-04-17 Johann Rafelski

The Comment of Gazdzicki and Heinz is flawed because their assumed baryon stopping power in $pA$ is inconsistent with data and because they ignored half the analysis based on the VENUS model. The Comment continues the misleading…

Nuclear Theory · Physics 2019-08-17 M. Gyulassy , V. Topor Pop , X. N. Wang

We investigate the enhancement of yields of strange and multi-strange baryons in proton-proton (p+p), proton-lead (p+Pb) and lead-lead (Pb+Pb) collisions at the Large Hadron Collider (LHC) energies from a dynamical core-corona…

Nuclear Theory · Physics 2018-12-31 Yuuka Kanakubo , Michito Okai , Yasuki Tachibana , Tetsufumi Hirano

The work in this thesis consists of two distinct parts: A class of models called, ``String-flip potential models,'' (SFP's) are studied as a possible candidate for modeling nuclear matter in terms of constituent quarks. These models are…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. M. Boyce

Within the framework of the improved isospin dependent quantum molecular dynamics (ImIQMD) model, the dynamics of strangeness (K$^{0,+}$, $\Lambda$ and $\Sigma^{-,0,+}$) production in heavy-ion collisions near threshold energies is…

Nuclear Theory · Physics 2010-12-23 Zhao-Qing Feng , Gen-Ming Jin

The production of hyperons in Pb-Pb and p-Be interaction at 40 $A$ GeV/$c$\ beam momentum has been measured by the NA57 experiment. Strange particle enhancements at 40 $A$ GeV/$c$ are presented and compared to those measured at 158 $A$…

High Energy Physics - Experiment · Physics 2007-05-23 T. Virgili

>A review of meson emission in heavy ion collisions at incident energies from SIS up to collider energies is presented. A statistical model assuming chemical equilibrium and local strangeness conservation (i.e. strangeness conservation per…

Nuclear Experiment · Physics 2008-11-26 Helmut Oeschler

Experimental observations of extensive air showers have revealed an excess of the muon content with respect to their theoretical simulations, which we refer to as the muon puzzle. This muon puzzle hampers a precise determination of the…

High Energy Physics - Phenomenology · Physics 2023-02-20 Julien Manshanden , Günter Sigl , Maria V. Garzelli

The NA57 experiment has measured the pt distributions of K0s, Lambda, and antiLambda particles in fixed-target Pb-Pb interactions at sqrt(s_{NN})=17.3 GeV as a function of the collision centrality. In this paper we study the…

Nuclear Experiment · Physics 2009-11-11 G. E. Bruno , A. Dainese

We investigate strange quark production in Au-Au collisions at RHIC in the framework of the Parton Cascade Model(PCM). The yields of (anti-) strange quarks for three production scenarios -- primary-primary scattering, full scattering, and…

Nuclear Theory · Physics 2009-11-10 Daphne Y. Chang , Steffen A. Bass , Dinesh K. Srivastava

Baryon-strangeness correlations ($C_{BS}$) are studied with a hadron/string transport approach (UrQMD) and a dynamical quark recombination model (quark molecular dynamics, qMD) for various energies from $E_{lab}=4A$ GeV to…

Nuclear Theory · Physics 2008-11-26 Stephane Haussler , Marcus Bleicher

Motivated by recent lattice QCD studies, we explore the effects of interactions on strangeness fluctuations in strongly interacting matter at finite temperature. We focus on S-wave $K\pi$ scattering and discuss the role of the $K_0^*(800)$…

High Energy Physics - Phenomenology · Physics 2015-11-09 Bengt Friman , Pok Man Lo , Michał Marczenko , Krzysztof Redlich , Chihiro Sasaki

Data from the LHC show a rise in strange-hadron production with charged-particle multiplicity in pp collisions. The Monte-Carlo event generator PYTHIA, using its default Monash tune, instead predicts constant strangeness. We investigate a…

High Energy Physics - Phenomenology · Physics 2026-03-02 Javira Altmann , Lorenzo Bernardinis , Peter Skands , Valentina Zaccolo