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arXiv 0905.2363nucl-th
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重离子碰撞中夸克和胶子分布的热效应

Thermal Effects for Quark and Gluon Distributions in Heavy-Ion Collisions

G. I. Lykasov, A. N. Sissakian, A. S. Sorin, O. V. Teryaev

摘要:

研究了中心A+A碰撞中夸克和胶子分布的介质内效应。我们提出了一个对偶原理,这意味着在重离子碰撞中产生的强子的热谱与在动态量子散射理论中得到的包含谱的相似性。在建议的方法,我们表明,这些部分子的横向动量的均方增长,然后饱和时,初始能量的增加。这导致了强子横质谱的能量依赖性,这与在重离子碰撞中观察到的结果相似。

英文摘要:

In-medium effects for distributions of quarks and gluons in central A+A collisions are considered. We suggest a duality principle, which means similarity of thermal spectra of hadrons produced in heavy-ion collisions and inclusive spectra which can be obtained within the dynamic quantum scattering theory. Within the suggested approach we show that the mean square of the transverse momentum for these partons grows and then saturates when the initial energy increases. It leads to the energy dependence of hadron transverse mass spectra which is similar to that observed in heavy ion collisions.

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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