论文标题
巨大的Quarkonia在散装粘性培养基中
Heavy quarkonia in a bulk viscous medium
论文作者
论文摘要
我们研究了在存在散装粘性效应的情况下，重夸克尼亚血浆中重夸克尼亚的性质。在一环的硬热环近似中，计算了夸克 - 胶状等离子体的介电介电常数，其中大量粘性效应通过热夸克和胶子的分布函数的变形而进入。基于修改的介电介电常数，我们计算了中等内部的重夸克电位，其中包括非替代弦乐术语以及扰动的库仑术语。我们讨论散装粘性效应如何改变中等潜力的实际和虚构部分。关于如何包括弦样非扰动电位，研究了几种处方。使用变形电势，我们计算大量的夸克尼亚在散装粘性培养基中的波功能，结合能和衰减宽度，并研究它们对散装粘性效应强度的敏感性。给出了熔融温度的估计。
We study the properties of heavy quarkonia in a quark-gluon plasma in the presence of bulk viscous effects. Within the hard thermal loop approximation at one-loop, the dielectric permittivity of quark-gluon plasma is computed, where the bulk viscous effect enters through the deformation of the distribution functions of thermal quarks and gluons. Based on the modified dielectric permittivity, we compute the in-medium heavy quark potential, that includes non-pertubative string-like terms as well as the perturbative Coulombic term. We discuss how the bulk viscous effect modifies the real and imaginary parts of the in-medium potential. Several prescriptions are examined as to how to include the string-like non-perturbative potentials. Using the deformed potential, we compute the wave functions, binding energies, and decay widths of heavy quarkonia in a bulk viscous medium, and study their sensitivity to the strength of the bulk viscous effect. An estimate of the melting temperatures is given.
