Diquark and chiral condensates in a self-consistent NJL-type model

被引：5

作者：

Yuan, Wen-Li ^{[1
,2
]}

Chao, Jingyi ^{[3
]}

Li, Ang ^{[2
]}

机构：

[1] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[2] Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China

[3] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330022, Jiangxi, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 108卷 / 04期

基金：

中国国家自然科学基金;

关键词：

EQUATION-OF-STATE; COLOR SUPERCONDUCTIVITY; BAYESIAN-INFERENCE; BARYON DENSITY; QUARK; MATTER; FLAVOR; QCD;

D O I：

10.1103/PhysRevD.108.043008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, a modified two-flavor Nambu-Jona-Lasinio-type model is utilized, in which the contact current-current interaction is Fierz-transformed into quark-antiquark interactions and quark-quark interactions, which are directly related to the chiral condensate and diquark condensate, respectively. Under mean-field approximation, the chiral condensate and the diquark condensate are studied on the same footing. We discuss in detail the competition between the chiral condensate and the diquark condensate, which are exclusively paired with u and d quarks, while also investigating the order of the chiral phase transition through an analysis of the resulting chiral susceptibility.

引用

页数：10

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