论文标题

夸克异常磁矩对PNJL模型中磁化热物质的热力学特性和中间激发的影响

Effects of quark anomalous magnetic moment on the thermodynamical properties and mesonic excitations of magnetized hot and dense matter in PNJL model

论文作者

Chaudhuri, Nilanjan, Ghosh, Snigdha, Sarkar, Sourav, Roy, Pradip

论文摘要

考虑到Quarks的异常磁矩(AMM)的有限值,使用Polyakov Loop的$ 2 $ -Flavour Nambu-Jona-Lasinio模型获得了各种热力学量和强烈相互作用的热和致密磁化夸克物质的相图。与组成夸克质量和捕捉的多柯夫环相关的敏感性用于评估手性和反式过渡温度。发现在存在背景磁场的情况下包含夸克的AMM导致手性的大幅降​​低以及反式过渡温度,而不是在没有手学过渡温度的情况下升高。使用有限温度场理论的标准技术,评估了标量($σ$)中的两个点热磁性中性相关函数,并评估中性伪卡($π^0 $)通道以计算$σ$和$π^0 $的质量,以计算$σ$和$π^0 $。

Various thermodynamic quantities and the phase diagram of strongly interacting hot and dense magnetized quark matter are obtained with the $ 2 $-flavour Nambu-Jona-Lasinio model with Polyakov loop considering finite values of the anomalous magnetic moment (AMM) of the quarks. Susceptibilities associated with constituent quark mass and traced Polyakov loop are used to evaluate chiral and deconfinement transition temperatures. It is found that, inclusion of the AMM of the quarks in presence of the background magnetic field results in a substantial decrease in the chiral as well as deconfinement transition temperatures in contrast to an enhancement in the chiral transition temperature in its absence. Using standard techniques of finite temperature field theory, the two point thermo-magnetic mesonic correlation functions in the scalar ($σ$) and neutral pseudoscalar ($π^0$) channels are evaluated to calculate the masses of $σ$ and $ π^0 $ considering the AMM of the quarks.

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