arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0908.1213hep-phhep-lathep-thnucl-th
收藏

Polyakov圈扩展的Nambu-Jona-Lasinio模型中的双夸克凝聚

Dual quark condensate in the Polyakov-loop extended Nambu--Jona-Lasinio model

Kouji Kashiwa, Hiroaki Kouno, Masanobu Yahiro

摘要:

用Polyakov圈扩展的Nambu-Jona-Lasinio模型计算了最近提出的双夸克凝聚体$Σ^{(n)}$作为${\mathbb Z}_3$对称性自发破缺的新序参量,其中$n$为缠绕数. Polyakov圈扩展的Nambu-Jona-Lasinio模型很好地再现了最近在$Σ^{(1)}$上测量的格点量子色动力学数据。双夸克凝聚体$Σ^{(n)}$在较高温度下对Polyakov圈扩展的Nambu-Jona-Lasinio模型中矢量型四夸克相互作用的强度敏感,因此是确定其强度的一个很好的量.

英文摘要:

The dual quark condensate $Σ^{(n)}$ proposed recently as a new order parameter of the spontaneous breaking of the ${\mathbb Z}_3$ symmetry are evaluated by the Polyakov-loop extended Nambu--Jona-Lasinio model, where $n$ are winding numbers. The Polyakov-loop extended Nambu--Jona-Lasinio model well reproduces lattice QCD data on $Σ^{(1)}$ measured very lately. The dual quark condensate $Σ^{(n)}$ at higher temperatures is sensitive to the strength of the vector-type four-quark interaction in the Polyakov-loop extended Nambu--Jona-Lasinio model and hence a good quantity to determine the strength.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑