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arXiv 0907.1360nucl-thhep-phnucl-ex
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重核相对论碰撞中夸克相和强子相热光子的干涉

Interference of thermal photons from quark and hadronic phases in relativistic collisions of heavy nuclei

Dinesh Kumar Srivastava, Rupa Chatterjee

摘要:

本文研究了RHIC和LHC能区重核中心碰撞中$K_T\leq$ 2 GeV/ $c$热光子的强度关联。这些光子从夸克和强子相位中得到竞争性的贡献。由于来自两个光源的光子之间的干涉,这种竞争产生了独特的结构,特别是在向外的关联函数中。两个源的时间分离提供了系统的寿命,并且它们的强度提供了两个阶段的相对贡献。结果表明,这些结果对夸克-强子相变温度和等离子体形成时间十分敏感。

英文摘要:

We explore the intensity correlations for thermal photons having $K_T\leq$ 2 GeV/$c$, for central collisions of heavy nuclei at RHIC and LHC energies. These photons get competing contributions from the quark and the hadronic phases. This competition gives rise to a unique structure, especially in the outward correlation function, due to the interference between the photons from the two sources. The temporal separation of the two sources provides the life time of the system and their strengths provide the relative contribution of the two phases. The results are found to be quite sensitive to the quark-hadron phase transition temperature and the formation time of the plasma.

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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