Power counting in relativistic baryon chiral perturbation theory

被引:46
作者
Gegelia, J [1 ]
Japaridze, G
Wang, XQ
机构
[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[2] Tbilisi State Univ, Inst High Energy Phys, GE-380086 Tbilisi, Georgia
[3] Clark Atlanta Univ, Ctr Theoret Studies Phys Syst, Atlanta, GA 30314 USA
关键词
D O I
10.1088/0954-3899/29/9/322
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In the simple model of interacting pseudoscalar and fermion fields it is demonstrated that using an appropriately chosen renormalization condition one can have consistent power counting for multi-loop diagrams within the relativistic baryon chiral perturbation theory. Explicit calculations are performed for a two-loop diagram contributing to fermion self-energy.
引用
收藏
页码:2303 / 2309
页数:7
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