INDUCED GLUON RADIATION IN A QCD MEDIUM

被引：374

作者：

BAIER, R

DOKSHITZER, YL

PEIGNE, S

SCHIFF, D

机构：

[1] LUND UNIV,DEPT THEORET PHYS,S-22362 LUND,SWEDEN

[2] UNIV PARIS 11,LPTHE,F-91405 ORSAY,FRANCE

[3] PETERSBURG NUCL PHYS INST,ST PETERSBURG 188350,RUSSIA

来源：

PHYSICS LETTERS B | 1995年 / 345卷 / 03期

关键词：

D O I：

10.1016/0370-2693(94)01617-L

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Soft gluon radiation induced by multiple scattering of a fast quark or gluon propagating through QCD matter is discussed. After revisiting the Landau-Pomeranchuk-Migdal effect in QED we show that large formation times of bremsstrahlung quanta determine the QCD radiation intensity (in analogy to QED) and derive the gluon energy spectrum. Coherent suppression takes place as compared to the Bethe-Heitler situation of independent emissions, As a result the energy loss of fast partons in a QCD medium depends on the incident energy E similarly to QED, -dE/dz alpha root E.

引用

页码：277 / 286

页数：10

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