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arXiv 1602.09060nucl-th
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彩色玻璃凝聚体中重离子碰撞的压力各向异性

Pressure Anisotropy in Heavy Ion Collisions from Color Glass Condensate

Ming Li, Joseph I. Kapusta

摘要:

本文推广了用小$τ$幂级数展开方法计算McLerran-Venugopalan模型中经典胶子场的能量动量张量。所有阶的能量密度和压力的结果都是在领先的$Q^2$近似下给出的,并包括运行耦合效应。能量密度和横向压力随时间单调减小,而纵向压力从负值开始向零增加。

英文摘要:

We generalize calculations of the energy-momentum tensor for classical gluon fields in the McLerran-Venugopalan model using the small-$τ$ power series expansion method. Results to all orders for the energy density and pressures are given in the leading $Q^2$ approximation and with the inclusion of running coupling effects. The energy density and transverse pressure decrease monotonically with time while the longitudinal pressure starts from a negative value and increases towards zero.

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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