Hadronic resonances in heavy-ion collisions at ALICE

被引：4

作者：

Knospe, A. G. ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

来源：

14TH INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER (SQM2013) | 2014年 / 509卷

关键词：

FREEZE-OUT; DYNAMICS;

D O I：

10.1088/1742-6596/509/1/012087

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Properties of the hadronic phase of high-energy heavy-ion collisions can be studied by measuring the ratios of hadronic resonance yields to the yields of longer-lived particles. These ratios can be used to study the strength of re-scattering effects, the chemical freeze-out temperature, and the lifetime between chemical and kinetic freeze-out. The restoration of chiral symmetry during the early hadronic phase or near the phase transition may lead to shifts in the masses and increases in the widths of hadronic resonances. The ALICE collaboration has measured the spectra, masses, and widths of the K*(892)(0) and phi(1020) resonances in Pb-Pb collisions at root S-NN = 2.76 TeV. These results, including R-AA and the ratios of the integrated resonance yields to stable hadron yields, are presented and compared to results from other collision systems and to theoretical predictions.

引用

页数：4

共 23 条

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