Effects of jet quenching on high pT hadron spectra in high-energy nuclear collisions

被引：188

作者：

Wang, XN

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[2] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW C | 1998年 / 58卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.58.2321

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：

Since large-p(T) particles in high-energy hadronic or nuclear collisions come from jet fragmentation, jet quenching due to parton energy loss in dense matter will cause the suppression of large-p(T) hadron spectra in high-energy heavy-ion collisions. Assuming an effective energy loss dE/dx for the high-E-T partons, effective jet fragmentation functions are constructed in which leading hadrons will be suppressed. Using such effective fragmentation functions, high-p(T) hadron spectra and particle suppression factors relative to pp collisions are estimated in central high-energy nuclear collisions with a given range of the assumed dE/dx. It is found that the suppression factors are very sensitive to the value of the effective energy loss. Systematic nuclear and flavor dependence of the hadron spectra are also studied. [S0556-2813(98)03610-3].

引用

页码：2321 / 2330

页数：10

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