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Critical Mass of Gauge Boson in Rainbow QED3 被引量:1
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作者 fenghong-tao HUFei +1 位作者 SUNWei-Min ZONGHong-Shi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第3期501-503,共3页
In three-dimensional quantum electrodynamics (QED3) with a massive gauge boson, we investigate the coupled Dyson-Schwinger equations for the fermion and photon propagators in the rainbow approximation, and obtain the ... In three-dimensional quantum electrodynamics (QED3) with a massive gauge boson, we investigate the coupled Dyson-Schwinger equations for the fermion and photon propagators in the rainbow approximation, and obtain the critical gauge boson mass for various numbers of the fermion flavors. A comparision with the previous results is presented. 展开更多
关键词 QED_3 dynamical chiral symmetry breaking critical gauge boson mass
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Effect of a Small Current Quark Mass on Bag Constant
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作者 ZONGHong-Shi fenghong-tao +2 位作者 SUNWei-Min DINGXiao-Ping PINGJia-Lun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第2X期261-266,共6页
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 eva... 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. 展开更多
关键词 Dyson-Schwinger近似 夸克质量 高能物理学 动态手性对称断裂 QCD相位结构
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