Anomalous mass dependence of radiative quark energy loss in a finite-size quark-gluon plasma

被引：25

作者：

Aurenche, P. ^{[1
]}

Zakharov, B. G. ^{[2
]}

机构：

[1] Univ Savoie, LAPTII, CNRS, F-74941 Annecy Le Vieux, France

[2] Russian Acad Sci, Landau Inst Theoret Phys, Moscow 117334, Russia

来源：

JETP LETTERS | 2009年 / 90卷 / 04期

关键词：

PHOTON-EMISSION; HEAVY FLAVOR; COLLISIONS;

D O I：

10.1134/S0021364009160048

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that for a finite-size quark-gluon plasma the induced gluon radiation from heavy quarks is stronger than that for light quarks when the gluon formation length becomes comparable with (or exceeds) the size of the plasma. The effect is due to oscillations of the light-cone wave function for the in-medium q -> gq transition. The dead cone model by Dokshitzer and Kharzeev neglecting quantum finite-size effects is not valid in this regime. The finite-size effects also enhance the photon emission from heavy quarks.

引用

页码：237 / 243

页数：7

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