Validity of the hadronic freeze-out curve

被引：2

作者：

Becattini, F. ^{[1
,2
]}

Bleicher, M. ^{[3
]}

Kollegger, T. ^{[3
]}

Mitrovski, M.

Schuster, T. ^{[3
,4
]}

Stock, R. ^{[3
,4
]}

机构：

[1] Univ Florence, Florence, Italy

[2] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

[3] Frankfurt Inst Adv Studies, Frankfurt, Germany

[4] Goethe Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2011年 / 38卷 / 12期

关键词：

QCD;

D O I：

10.1088/0954-3899/38/12/124075

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We analyze hadrochemical freeze-out in central Pb+Pb collisions at CERN SPS energies, employing the hybrid version of UrQMD which models hadronization from a hydrodynamic phase by the Cooper-Frye mechanism, and matches to a final hadron-resonance cascade. We fit the results both before and after the cascade stage using the statistical hadronization model to assess the effect of the cascade phase. We observe a strong effect on antibaryon yields except anti-Omega, resulting in a shift in T and mu(B). We discuss the implications for the freeze-out curve.

引用

页数：4

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