Practical scheme from QCD to phenomena via Dyson-Schwinger equations

被引:18
|
作者
Tang, Can [1 ,2 ,3 ]
Gao, Fei [4 ,5 ,6 ]
Liu, Yu-xin [1 ,2 ,3 ,7 ]
机构
[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
[4] Univ Valencia, Dept Theoret Phys, E-46100 Valencia, Spain
[5] Univ Valencia, IFIC, E-46100 Valencia, Spain
[6] CSIC, E-46100 Valencia, Spain
[7] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
CHIRAL-SYMMETRY BREAKING; QUARK-GLUON VERTEX; INFRARED BEHAVIOR; BOUND-STATES; CONFINEMENT; TEMPERATURE; PROPAGATORS; THEOREM; MESONS;
D O I
10.1103/PhysRevD.100.056001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We deliver a scheme to compute the quark propagator and the quark-gluon interaction vertex through the coupled Dyson-Schwinger equations (DSEs) of QCD. We take the three-gluon vertex into account in our calculations, and implement the gluon propagator and the running coupling function fitted by the solutions of their respective DSEs. We obtain the momentum and current mass dependence of the quark propagator and the quark-gluon vertex, and the chiral quark condensate that agrees with previous results excellently. We also compute the quark-photon vertex within this scheme and give the anomalous chromo- and electromagnetic moment of the quark. The obtained results are excellently consistent with previous ones. These applications manifest that the scheme is realistic and then practical for explaining the QCD-related phenomena.
引用
收藏
页数:16
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