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arXiv 1801.03544nucl-exhep-exnucl-th
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$\sqrt{S_{NN}} = 200$ GeV Au+Au碰撞中三粒子玻色-爱因斯坦关联的PDKEEPAAA计算

PHENIX results on three-particle Bose-Einstein correlations in $\sqrt{S_{NN}} = 200$ GeV Au+Au collisions

Tamás Novák

摘要:

全同强子的玻色-爱因斯坦关联揭示了在超相对论性重离子碰撞中强相互作用物质产生强子的信息。三粒子相关性的测量可能会特别揭示强子产生机制超越热/混沌发射。在本文中,我们显示的状态PHENIX测量的三个π介子的相关性作为一个功能的三重态内的动量差。我们分析了关联函数的形状,通过假设的Lévy源和适当的处理库仑相互作用的三重态。我们测量的三粒子相关强度($λ_3$),其中,连同两粒子相关强度$λ_2$,编码有关强子创建机制的信息。从二粒子和三粒子关联强度的一致性分析,我们建立了一个新的实验测量热化和相干源。

英文摘要:

Bose-Einstein correlations of identical hadrons reveal information about hadron creation from the strongly interacting matter formed in ultrarelativistic heavy ion collisions. The measurement of three-particle correlations may in particular shed light on hadron creation mechanisms beyond thermal/chaotic emission. In this paper we show the status of PHENIX measurements of three pion correlations as a function of momentum differences within the triplets. We analyze the shape of the correlation functions through the assumption of Lévy sources and a proper treatment of the Coulomb interaction within the triplets. We measure the three-particle correlation strength ($λ_3$), which, together with the two-particle correlation strength $λ_2$, encodes information about hadron creation mechanisms. From a consistent analysis of two- and three-particle correlation strength we establish a new experimental measure of thermalization and coherence in the source.

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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