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The multi-strange baryon yields in Pb--Pb collisions have been shown to exhibit an enhancement relative to pp reactions. In this work, $\Xi$ and $\Omega$ production rates have been measured with the ALICE experiment as a function of…

Nuclear Experiment · Physics 2016-01-13 ALICE Collaboration

The spectra of strange hadrons are measured in proton-proton collisions, recorded by the CMS experiment at the CERN LHC, at centre-of-mass energies of 0.9 and 7 TeV. The K^0_s, Lambda, and Xi^- particles and their antiparticles are…

High Energy Physics - Experiment · Physics 2012-08-27 The CMS Collaboration

In ultrarelativistic heavy ion collisions the baryon-meson ratio is not fully understood in the intermediate-to-high transverse momentum region. Although quark coalescence methods combined with jet fragmentation yield results close to the…

High Energy Physics - Phenomenology · Physics 2012-08-03 Dániel Berényi , Attila Pásztor , Vladimir Skokov , Péter Lévai

We study the mechanism of the associated Lambda-kaon and Sigma-kaon production in nucleon-nucleon collisions over an extended range of near threshold beam energies within an effective Lagrangian model, to understand of the new data on pp…

Nuclear Theory · Physics 2009-11-11 Radhey Shyam

Kaon production in pion-nucleon collisions in nuclear matter is studied in the resonance model. To evaluate the in-medium modification of the reaction amplitude as a function of the baryonic density we introduce relativistic, mean-field…

Nuclear Theory · Physics 2010-02-17 K. Tsushima , A. Sibirtsev , A. W. Thomas

Due to its large acceptance, the STAR experiment has acquired a wealth of data on strangeness production for a variety of collisions systems and energies, from p+p to Au+Au. By using the yields and spectra, we address the evolution of the…

Nuclear Experiment · Physics 2010-12-17 Matthew A. C. Lamont

We report on the observed differences in production rates of strange and multi-strange baryons in Au+Au collisions at sqrts = 200 GeV compared to pp interactions at the same energy. The strange baryon yields in Au+Au collisions, then scaled…

Nuclear Experiment · Physics 2008-11-26 STAR Collaboration , B. I. Abelev

Yield ratios of identified hadrons observed in high multiplicity p+p and p+Pb collisions at LHC show remarkable similarity with those in Pb+Pb collisions, indicating some important and universal underlying dynamics in hadron production for…

High Energy Physics - Phenomenology · Physics 2017-08-02 Feng-lan Shao , Guo-jing Wang , Rui-qin Wang , Hai-hong Li , Jun Song

We report STAR preliminary results on multi-strange baryon production in Au+Au collisions at sqrt(s_NN)=200 GeV at RHIC. Its implication for the formation of a new state of matter is discussed. The system size dependence on the production…

Nuclear Experiment · Physics 2009-11-10 Magali Estienne

The production of ${\rm\Xi}^-$ and ${\rm\Omega}^-$ baryons and their anti-particles in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV has been measured using the ALICE detector. The transverse momentum spectra at mid-rapidity ($|y| <…

Nuclear Experiment · Physics 2014-09-17 ALICE Collaboration

The features of net baryon productions and collective flow in relativistic heavy-ion collisions at energies reached at the CERN Large Hadron Collider (LHC), BNL Relativistic Heavy Ion Collider (RHIC), CERN Super Proton Synchrotron (SPS) and…

High Energy Physics - Phenomenology · Physics 2012-02-13 Sheng-Qin Feng , Yang Zhong

Boost-invariant hadron production in high energy collisions occurs in causally disconnected regions of finite space-time size. As a result, globally conserved quantum numbers (charge, strangeness, baryon number) are conserved locally in…

High Energy Physics - Phenomenology · Physics 2016-08-24 P. Castorina , H. Satz

The rapidity distribution of $\Lambda$ and $\bar{\Lambda}$ produced in nucleus-nucleus collisions at CERN energies is studied in the framework of an independent string model - with quark-antiquark as well as diquark-antidiquark pairs in the…

High Energy Physics - Phenomenology · Physics 2008-02-03 A. Capella , A. Kaidalov , A. Kouider Akil , C. Merino , J. Tran Thanh Van

The production and dynamics of strange and antistrange hadrons in heavy-ion reactions from $\sqrt{s_{NN}} \approx$ 3 GeV to 200 GeV is analyzed within the Parton-Hadron-String-Dynamics (PHSD) transport model. The PHSD results for strange…

Nuclear Theory · Physics 2016-02-17 Pierre Moreau , Feng Li , Che-Ming Ko , Wolfgang Cassing , Elena Bratkovskaya

Identified hadron spectra and ratios provide a unique tool to study the bulk particle production in heavy-ion collisions and explore the QCD phase diagram. In these proceedings we present the analysis of charged pion, kaon and (anti)proton…

Nuclear Experiment · Physics 2019-08-13 Aneta Iordanova

A brief summary of strangeness mile stones is followed by a chemical non-equilibrium statistical hadronization analysis of strangeness results at SPS and RHIC. Strange particle production in AA interactions at \sqrt{s_{NN}}\ge 8.6 GeV can…

High Energy Physics - Phenomenology · Physics 2009-11-10 J. Rafelski , J. Letessier

Production of charmed and beauty mesons and baryons in hadron-nucleon collisions at not very high energy is considered in the framework of the Quark-Gluon String Model. We take into account the possible corrections to the model which…

High Energy Physics - Phenomenology · Physics 2008-02-03 N. Armesto , C. Pajares , Yu. M. Shabelski

Rapidity distributions of net hyperons ($\Lambda - \overline{\Lambda}$) are compared to distributions of participant protons ($p - \overline{p}$). Strangeness production (mean multiplicities of produced $\Lambda/\Sigma^0$ hyperons and…

High Energy Physics - Experiment · Physics 2007-05-23 Dieter Roehrich , NA35 Collaboration

The ALICE experiment at the LHC has measured the production of strange hadrons and resonances in Pb-Pb and pp collisions at unprecedented high beam energies. The study of strange hadrons and resonances helps us to understand the properties…

High Energy Physics - Experiment · Physics 2015-06-12 Subhash Singha

After a brief survey of the remarkable accomplishments of the current heavy ion collision experiments up to 200A GeV, we address in depth the role of strange particle production in the search for new phases of matter in these collisions. In…

Nuclear Theory · Physics 2021-05-24 Johann Rafelski , Jean Letessier , Ahmed Tounsi