A QCD Sum Rule Approach with an Explicit Di-quark field

被引：0

作者：

Kim, Kyung-il ^{[1
]}

Jido, Daisuke ^{[2
]}

Lee, Su Houng ^{[1
,2
]}

机构：

[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea

[2] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 606, Japan

来源：

INTERNATIONAL CONFERENCE ON THE STRUCTURE OF BARYONS (BARYONS '10) | 2011年 / 1388卷

关键词：

Di-quark; QCD Sum Rule; EXOTICA; DENSITY; MODEL;

D O I：

10.1063/1.3647428

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In hadron phenomenology, diquark structures can be an important degree of freedom in certain configurations. We investigate the possibility that the diquark structure can be treated as an elementary field in certain configurations. To start with, we assume that Lambda is composed of a spectator strange quark and a diquark. We construct a QCD sum rule for Lambda, where the input parameters are the diquark mass and its condensate, in addition to other parameters of QCD sum rules. We find good Borel curve for the Lambda mass for certain combinations of the diquark mass and condensate, and that smaller diquark condensate is needed when the diquark mass is increased to maintain the good Borel curve. The same sets of diquark mass and condensate are found to work well for Lambda(c) and Lambda(b).

引用

页数：4

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