A comparison of condensate mass of QCD vacuum between Wilson line approach and Schwinger effect

• 作者: Sara Tahery Xurong Chen Liping Zou
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: PARTICLES AND FIELDS
• 页码范围: 123-129
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1137/abe03b

摘要

We studied the condensate mass of QCD vacuum through the duality approach via dilaton wall back ground in the presence of the parameter c,which represents the condensation in a holographic set up.First,from Wilson line calculation,we found mo2 (i.e.,the condensate parameter in mixed non-local condensation),whose behavior mimics that of QCD.The value of m20 that we found by this approach is in agreement with QCD data.Second,we considered the produced mass m via the Schwinger effect mechanism in the presence of the parameter c.We show that vacuum condensation generally contributes the mass dominantly and that the produced mass via Schwinger effect is suppressed by m0.