极端条件下$J^{PC} = 2^{--}$九元数的缺失
Missing Member of the $J^{PC} = 2^{--}$ Nonet in Extreme Conditions
摘要:
应该发生在PDG进一步状态中的轴张量家族的等距成员仍然不存在。在这项研究中,分析了是否有一个X的状态,其量子数是未知的,在这个组中,是一个候选人的分配$ 2^3D_2 $下的失踪共振。此外,用热平均算符代替时间演化算符,构造了满足热QCD求和规则的修正相关器。我们确定了所考虑的九重成员的强子参数是敏感的温度增量。这些知识将有助于完成$J^{PC} = 2^{--}$轻介子九重态的研究,并有助于探索未来重离子碰撞实验中的热介质行为。
英文摘要:
The isoscalar member of the axial-tensor family that should take place in the further states of the PDG is still absent. In this study, analyzes are made as to whether one of the X states whose quantum numbers are unknown in this group, is a candidate for the missing resonance under the assignment $ 2^3D_2 $. Moreover, replacing the time evolution operator with the thermal average one, we construct the modified correlator satisfying Thermal QCD sum rules approach. We determine that the hadronic parameters of the considered nonet member are sensitive to the increment of temperature. This knowledge can be helpful to complete the $J^{PC} = 2^{--}$ light meson nonet and also explore the hot medium behaviors at upcoming heavy-ion collision experiments.
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