Local Monte Carlo Implementation of the Non-Abelian Landau-Pomeranchuk-Migdal Effect

被引：52

作者：

Zapp, Korinna ^{[1
,2
]}

Stachel, Johanna ^{[1
]}

Wiedemann, Urs Achim ^{[3
]}

机构：

[1] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[2] GSI Helmholtz Inst Ionenforsch, EMMI, D-64291 Darmstadt, Germany

[3] CERN, Dept Phys, Theory Unit, CH-1211 Geneva 23, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 15期

关键词：

RADIATIVE ENERGY-LOSS; QUARK-GLUON PLASMA; PERSPECTIVE; MATTER;

D O I：

10.1103/PhysRevLett.103.152302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The non-Abelian Landau-Pomeranschuk-Migdal (LPM) effect arises from the quantum interference between spatially separated, inelastic radiation processes in matter. A consistent probabilistic implementation of this LPM effect is a prerequisite for extending the use of Monte Carlo (MC) event generators to the simulation of jetlike multiparticle final states in nuclear collisions. Here, we propose a local MC algorithm, which is based solely on relating the LPM effect to the probabilistic concept of formation time for virtual quanta. This accounts probabilistically for the characteristic L-2 dependence of average parton energy loss and the characteristic 1/root omega modification of the non-Abelian LPM effect. Additional kinematic constraints are found to modify these L-2 and omega dependencies characteristically in accordance with analytical estimates.

引用

页数：4

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