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arXiv 1605.09563hep-ph
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相对论性重离子碰撞中的热模型之外

Beyond the thermal model in relativistic heavy-ion collisions

Georg Wolschin

摘要:

本文讨论了相对论性重离子碰撞中产生的粒子偏离热分布函数的情况,并将其作为非平衡过程的指标。重点是生产的带电强子的碰撞能量和中心性的函数,用来推断所产生的粒子从一个中心火球的分数相比,一个从破碎源,是不平衡的系统的其余部分的快度分布。总的热平衡将仅在大的时间t ->无穷大时达到。

英文摘要:

Deviations from thermal distribution functions of produced particles in relativistic heavy-ion collisions are discussed as indicators for nonequilibrium processes. The focus is on rapidity distributions of produced charged hadrons as functions of collision energy and centrality which are used to infer the fraction of produced particles from a central fireball as compared to the one from the fragmentation sources that are out of equilibrium with the rest of the system. Overall thermal equilibrium would only be reached for large times t -> infinity.

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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