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arXiv 2201.09327hep-lathep-phnucl-th
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重夸克势虚部的长短距离行为

Long and short distance behavior of the imaginary part of the heavy-quark potential

Kirill Boguslavski, Babak Kasmaei, Michael Strickland

摘要:

有效重夸克势的虚部与重夸克-反夸克束缚态的总介质内衰变宽度有关。我们提取的静态限制,这个数量使用经典统计模拟的实时杨米尔斯动态测量的时间衰减的威尔逊圈。通过对更细和更大的晶格进行模拟,我们能够表明,非微扰的结果遵循相同的形式作为微扰的。对于大的夸克反夸克分离,我们量化的非微扰长程修正的重夸克势的虚部的大小。我们提出了我们的结果在很宽的温度范围内,晶格间距,晶格体积。我们还提取近似的经典潜力的短距离行为。

英文摘要:

The imaginary part of the effective heavy-quark potential is related to the total in-medium decay width of heavy quark-antiquark bound states. We extract the static limit of this quantity using classical-statistical simulations of real-time Yang-Mills dynamics by measuring the temporal decay of Wilson loops. By performing the simulations on finer and larger lattices, we are able to show that the nonperturbative results follow the same form as the perturbative ones. For large quark-antiquark separations, we quantify the magnitude of the non-perturbative long-range corrections to the imaginary part of the heavy-quark potential. We present our results for a wide range of temperatures, lattice spacings, and lattice volumes. We also extract approximations for the short-distance behavior of the classical potential.

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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