Space-time evolution of ultra-relativistic heavy ion collisions and hadronic spectra

被引：9

作者：

Patra, BK

Alam, JE

Roy, P

Sarkar, S

Sinha, B

机构：

[1] Ctr Variable Energy Cyclotron, Kolkata 700064, India

[2] Saha Inst Nucl Phys, Kolkata 700064, India

来源：

NUCLEAR PHYSICS A | 2002年 / 709卷

关键词：

D O I：

10.1016/S0375-9474(02)01074-6

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：

The space-time evolution of the hot and dense matter formed after the collisions of heavy nuclei at ultra-relativistic energies is investigated using (3 + 1)-dimensional hydrodynamical models. The effects of the spectral shift of the hadronic properties are incorporated in the equation of state (EOS) of the evolving matter. In-medium shift of hadronic properties are considered for Quantum Hadrodynamics (QHD) and universal scaling scenarios. It is found that the EOS for the hadronic matter for universal scaling of hadronic masses (except pseudoscalar) is similar to the recent lattice results. We observe that the space-time volume of the hadronic matter at the freeze-out is considerably different from the one when medium effects on the hadrons are ignored. The transverse mass spectra of pions and protons of the NA49 Collaboration are analyzed in the present framework. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：440 / 450

页数：11

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