Non-extensive statistical effects in high-energy collisions

被引：96

作者：

Alberico, W. M. ^{[1
,3
]}

Lavagno, A. ^{[2
,3
]}

机构：

[1] Univ Turin, Dipartimento Fis, I-10124 Turin, Italy

[2] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy

[3] Ist Nazl Fis Nucl, Sez Torino, Milan, Italy

来源：

EUROPEAN PHYSICAL JOURNAL A | 2009年 / 40卷 / 03期

关键词：

PARTICLE-PRODUCTION; NONEXTENSIVE STATISTICS; GENERALIZED STATISTICS; ANOMALOUS DIFFUSION; PHASE-TRANSITIONS; DISTRIBUTIONS; EQUILIBRATION; QUARK; DECONFINEMENT; FLUCTUATIONS;

D O I：

10.1140/epja/i2009-10809-3

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：

Following the basic prescriptions of the relativistic Tsallis' non-extensive thermostatistics, we investigate from a phenomenological point of view the relevance of non-extensive statistical effects on relativistic heavy-ion collisions observables, such as rapidity spectra of the net proton production, transverse momentum distributions and transverse momentum fluctuations. Moreover, we study the nuclear and the subnuclear equation of state, investigating the critical densities of a phase transition to a hadron-quarkgluon mixed phase by requiring the Gibbs conditions on the global conservation of the electric and the baryon charges. The relevance of small deviations from the standard extensive statistics is studied in the context of intermediate- and high-energy heavy-ion collisions.

引用

页码：313 / 323

页数：11

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