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arXiv 1202.1192hep-ph
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超过BDMPS-Z极限的相干辐射部分子能量损失

Coherent Radiative Parton Energy Loss beyond the BDMPS-Z Limit

Korinna C. Zapp, Urs A. Wiedemann

摘要:

人们普遍认为,重离子碰撞的喷注猝灭唯象理论需要理解介质诱导的部分子能量损失超过Baier-Dokshitzer-Mueller-Peigne-Schiff和Zakharov(BDMPS-Z)的程函运动学极限。在这里,我们补充了最近开发的精确蒙特卡罗实现的BDMPS-Z形式主义与基本的物理要求,包括精确的能量-动量守恒,一个精致的制定射流介质相互作用和治疗的所有部分子分支在同一个立足点。我们记录这些物理要求引起的变化,我们描述了它们的运动起源。

英文摘要:

It is widely accepted that a phenomenologically viable theory of jet quenching for heavy ion collisions requires the understanding of medium-induced parton energy loss beyond the limit of eikonal kinematics formulated by Baier-Dokshitzer-Mueller-Peigne-Schiff and Zakharov (BDMPS-Z). Here, we supplement a recently developed exact Monte Carlo implementation of the BDMPS-Z formalism with elementary physical requirements including exact energy-momentum conservation, a refined formulation of jet-medium interactions and a treatment of all parton branchings on the same footing. We document the changes induced by these physical requirements and we describe their kinematic origin.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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