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arXiv 1105.4359nucl-th
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辐射喷流能量损失对非零磁质量的推广

Generalization of radiative jet energy loss to non-zero magnetic mass

Magdalena Djordjevic, Marko Djordjevic

摘要:

在超相对论性重离子碰撞中对喷流猝灭的可靠预测需要精确计算辐射能量损失。基于这个目标,最近发展了一个实际的有限尺寸动态QCD介质中的能量损失形式。虽然这种形式主义假设零磁质量-根据单圈微扰计算-不同的非微扰方法报告RHIC和LHC的非零磁质量。我们在这里概括的能量损失,始终包括存在非零磁屏蔽的可能性。我们还介绍了如何列入有限的磁性质量的变化的能量损失的结果。我们的分析表明,磁电质量比的基本约束。

英文摘要:

Reliable predictions for jet quenching in ultra-relativistic heavy ion collisions require accurate computation of radiative energy loss. With this goal, an energy loss formalism in a realistic finite size dynamical QCD medium was recently developed. While this formalism assumes zero magnetic mass - in accordance with the one-loop perturbative calculations - different non-perturbative approaches report a non-zero magnetic mass at RHIC and LHC. We here generalize the energy loss to consistently include a possibility for existence of non-zero magnetic screening. We also present how the inclusion of finite magnetic mass changes the energy loss results. Our analysis indicates a fundamental constraint on magnetic to electric mass ratio.

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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