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arXiv 1302.0928nucl-thhep-ph
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胶子等离子体中的碰撞率和对称因子

Collision Rate and Symmetry Factor in Gluon Plasma

Jian Deng, Qun Wang

摘要:

计算了胶子气体中的弹性和非弹性碰撞率。详细讨论了对称因子和相空间积分。在引入对称因子和相空间约束条件下,可以得到与不引入对称因子时完全相空间相同的结果。通过对$gg \rightarrow gg$和$gg\rightarrow ggg$过程的分析和数值计算,说明了这种等价性。

英文摘要:

The elastic and inelastic collision rates in a gluon gas are calculated. The symmetry factor and the phase space integral are discussed in detail. With a symmetry factor and well constrained phase space, the same result can be obtained as that of the full phase space without the factor. Such an equivalence is illustrated by analytic and numerical calculations for $gg \rightarrow gg$ and $gg\rightarrow ggg$ processes.

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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