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Effect of a Small Current Quark Mass on Bag Constant
A method for obtaining the small current quark mass effect on the dressed quark propagator within the Dyson-Schwinger approach is developed. From this the small current quark mass dependence of the bag constant is evaluated. It is found that the bag constant decreases with the increasing current quark mass and the contribution of the current quark mass cannot be dropped.
作 者： ZONG Hong-Shi FENG Hong-Tao SUN Wei-Min DING Xiao-ping PING Jia-Lun 作者单位： ZONG Hong-Shi(Department of Physics, Nanjing University, Nanjing 210093, China;CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China)FENG Hong-Tao,SUN Wei-Min,DING Xiao-ping(Department of Physics, Nanjing University, Nanjing 210093, China)
PING Jia-Lun(Department of Physics, Nanjing Normal University, Nanjing 210097, China)
刊 名： 理论物理通讯（英文版） ISTIC SCI 英文刊名： COMMUNICATIONS IN THEORETICAL PHYSICS 年，卷(期)： 2004 42(8) 分类号： O57 关键词： Dyson-Schwinger approach explicit and dynamical chiral symmetry breaking bag constant smallcurrent quark mass【Effect of a Small Current Quark Mass】相关文章：
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