Chiral Lagrangians for mesons with a single heavy quark

被引:13
作者
Jiang, Shao-Zhou [1 ]
Liu, Yan-Rui [2 ]
Yang, Qin-He [1 ]
机构
[1] Guangxi Univ, Key Lab Relativist Astrophys, Dept Phys, Nanning 530004, Peoples R China
[2] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
基金
美国国家科学基金会;
关键词
PERTURBATION-THEORY;
D O I
10.1103/PhysRevD.99.074018
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We construct the relativistic chiral Lagrangians for heavy-light mesons (Q (q) over bar) to the O(p(4)) order. From O(p(2)) to O(p(4)), there are 17, 67, and 404 independent terms in the flavor SU(2) case and 20, 84, and 655 independent terms in the flavor SU(3) case. The Lagrangians in the heavy quark limit are also obtained. From O(p(2)) to O(p(1)), there are 7, 25, and 136 independent terms in the flavor SU(2) case and 8, 33, and 212 independent terms in the flavor SU(3) case. The relations between low-energy constants based on the heavy quark symmetry are also given up to the O(p(3)) order.
引用
收藏
页数:22
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