尾迹场对碰撞夸克-胶子等离子体中夸克粒子解离的影响

Yernur Kuanyshbaiuly, Ardak Junissov, Mukhit Muratov
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引用次数: 0

摘要

我们研究了尾迹对重夸克态J/ψ和Y解离的影响,引入了夸克间势的介质内修正。利用动力学理论(玻尔兹曼方程)得到的具有Bhatnagar-Gross-Krook (BGK)碰撞项的动态介电函数,利用线性响应理论模拟了夸克-胶子等离子体中的尾迹。利用介质修正势研究了夸克粒子在介质中的运动速度和碰撞频率等参数对其解离特性的影响。我们还计算了解离温度的临界值。发现了由于尾流场效应引起的解离能的变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of a Wake-Field on the Dissociation of Quarkonium in Collisional Quark–Gluon Plasma
We have studied wake effects on the dissociation of heavy quarkonia states J/ψ and Y by introducing an in-medium modification to the inter-quark potential. The wakes in the quark–gluon plasma were modeled using linear response theory using a dynamic dielectric function obtained from kinetic theory (Boltzmann equation) with a Bhatnagar–Gross–Krook (BGK) collision term. The in-medium modified potential was used to investigate the dissociation character depending on various parameters such as the velocity of quarkonium moving through the medium and the collision frequency. We have also calculated critical values of the dissociation temperature. Modifications of the dissociation energy due to wake-field effects were found.
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