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Related papers: Canonical Strangeness Enhancement

200 papers

Selected topics in strangeness nuclear physics are critically reviewed. This includes production, structure and weak decay of $\Lambda$--Hypernuclei, the $\bar K$ nuclear interaction and the possible existence of $\bar K$ bound states in…

Nuclear Experiment · Physics 2012-05-17 Elena Botta , Tullio Bressani , Gianni Garbarino

A constraint between thermal fireball parameters arises from the requirement that the balance of strangeness in a fireball is (nearly) zero. We study the impact of this constraint on (multi-)strange (anti-)baryon multiplicities and compare…

High Energy Physics - Phenomenology · Physics 2009-10-09 J. Letessier , A. Tounsi , U. Heinz , J. Sollfrank , J. Rafelski

The strangeness enhancement signature of QGP formation at LHC energies is carefully tackled in the present study. Based on HRG, the particle ratios of mainly strange and multi-strange particles are studied at energies from lower…

High Energy Physics - Phenomenology · Physics 2021-11-30 Mahmoud Hanafy , Omnia S. A. Qandil , Asmaa G. Shalaby

I review the foundational motivation which led us to the ultra relativistic heavy ion collision research at SPS, RHIC and now LHC: the quantum vacuum structure; the deconfined nature of quark-gluon plasma (QGP) phase filling the Universe…

Nuclear Theory · Physics 2012-05-10 Jan Rafelski

We present preliminary STAR results on measurements of multi-strange particles $\Xi$, $\Omega$ and their anti-particles from Au+Au and Cu+Cu at $\sqrt{s_{NN}}=62.4$ GeV collisions. In order to better understand the role of strangeness…

Nuclear Experiment · Physics 2010-09-22 G. M. S. Vasconcelos

The Statistical Model has to be formulated in the canonical ensemble with respect to strangeness conservation if the number of strange particles becomes small. However, the canonical suppression under the assumption of strangeness chemical…

High Energy Physics - Phenomenology · Physics 2009-09-29 Ingrid Kraus , Helmut Oeschler , Krzysztof Redlich

The idea that the reduction of the strange quark suppression in string fragmentation leads to the enhancement of strange particle yield in nucleus-nucleus collisions is applied to study the singly and multiply strange particle production in…

High Energy Physics - Phenomenology · Physics 2009-10-31 Sa Ben-Hao , Wang Xiao-Rong , Tai An , Zhou Dai-Cui , Cai Xu

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

Strangeness enhancement in heavy-ion collisions is studied at the parton level by examining the partition of the new sea quarks generated by gluon conversion into the strange and non-strange sectors. The CTEQ parton distribution functions…

Nuclear Theory · Physics 2009-11-07 Rudolph C. Hwa , C. B. Yang

The chemical freeze-out of hadrons created in the high energy nuclear collisions is studied within the realistic version of the hadron resonance gas model. The chemical non-equilibrium of strange particles is accounted via the usual…

High Energy Physics - Phenomenology · Physics 2014-11-21 V. V. Sagun , D. R. Oliinychenko , K. A. Bugaev , J. Cleymans , A. I. Ivanytskyi , I. N. Mishustin , E. G. Nikonov

Two signatures of the quark-gluon plasma - strangeness `enhancement' and J/psi `suppression' - in nucleus-nucleus collisions are critically discussed. A recently developed statistical coalescence model for J/\psi production is presented.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mark I. Gorenstein

This talk is devoted to review the field of strangeness production in (ultra-)relativistic heavy ion collisions within our present theoretical understanding. Historically there have been (at least) three major ideas for the interest in the…

Nuclear Theory · Physics 2008-11-26 Carsten Greiner

We argue that the main features of baryon and anti-baryon enhancement observed by the WA97 collaboration can be described using canonical formulation of strangeness conservation. Within this formulation strangeness enhancement could be…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Redlich , A. Tounsi

The results of the WA97 collaboration for strange particle production at mid-rapidity in Pb--Pb collisions at 158 GeV A/c at CERN display a strong strangeness enhancement with system size at mid-rapidity which is dependent on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sahal Yacoob , Jean Cleymans

We study, in the dynamically evolving QGP fireball formed in relativistic heavy ion collisions at RHIC and LHC, the growth of strangeness yield toward and beyond the chemical equilibrium. We account for the contribution of the direct…

Nuclear Theory · Physics 2009-09-29 Jean Letessier , Johann Rafelski

An effective model with constituent quarks as fundamental degrees of freedom is used to predict the relative strangeness production pattern in both high energy elementary and heavy ion collisions. The basic picture is that of the…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. Becattini , G. Pettini

Strangeness plays an important role in the study of quark matter since it indicates the rate at which new particles are being produced and therefore provides information about the degree of chemical equilibration reached in heavy ion…

Nuclear Theory · Physics 2007-05-23 J. Cleymans

In this conference proceeding, we review important theoretical developments related to the production of strangeness in astrophysics. This includes its effects in supernova explosions, neutron stars, and compact-star mergers. We also…

High Energy Astrophysical Phenomena · Physics 2022-02-16 Veronica Dexheimer , Krishna Aryal

We investigate here the relative abundance of strange particles produced in nuclear collisions at the SPS energies (9 GeV A in CM frame) assuming that the central reaction fireball consists of quark-gluon plasma. We show that the total…

High Energy Physics - Phenomenology · Physics 2009-10-30 Jean Letessier , Jan Rafelski , Ahmed Tounsi

It is shown that the strangeness enhancement and the J/psi anomalous suppression patterns observed in heavy ion collisions at top SPS energy, sqrt(s)_NN = 17.2 GeV, exhibit an interesting correlation if studied as a function of the…

High Energy Physics - Phenomenology · Physics 2009-11-11 F. Becattini , L. Maiani , F. Piccinini , A. D. Polosa , V. Riquer