论文标题
胶球共振气体的热力学
Thermodynamics of the Glueball Resonance Gas
论文作者
论文摘要
我们研究了胶球气体的热力学特性 - 压力，熵和痕量异常 - 包括各种晶格模拟获得的粘合球状态。我们表明，该模型称为Glueball共振气（GRG）方法，很好地描述了QCD的Yang-Mills sector的热能范围以下低于临界温度$ t_c $，前提是$ t_c $适当地匹配了相应的粘合球块的确定，从而获得了$ t_c \ sim 320 \ pm pm 20 $ 20 $ 20。假设粘合球遵循gegge轨迹，那么又涉及Quark-Antiquark国家的ge轨迹，将其纳入较重的粘合球尚未看到，这只会导致较小的校正。我们考虑对标量尺度和张量调量粘合球之间相互作用的压力的贡献，事实证明这也可以忽略不计。
We study the thermodynamic properties -- pressure, entropy and trace anomaly -- of a gas of glueballs that includes the glueball states obtained by various lattice simulations. We show that this model, called Glueball Resonance Gas (GRG) approach, describes well the thermal properties of the Yang-Mills sector of QCD below the critical temperature $T_c$, provided that $T_c$ is properly matched to the corresponding determination of the glueball masses, obtaining $T_c \sim 320 \pm 20$ MeV. The inclusion into the GRG of heavier glueballs not yet seen on the lattice, assuming that glueballs follow Regge trajectories as quark-antiquark states do, leads only to a small correction. We consider the contribution to the pressure of the interactions between scalar-scalar and tensor-tensor glueballs, which turn out to be also negligible.
