Exact scale invariance of composite-field coupling constants

被引：2
|
作者：
Akama, K [1 ]
Hattori, T
机构：
[1] Saitama Med Coll, Dept Phys, Saitama 3500496, Japan
[2] Kanagawa Dent Coll, Dept Phys, Kanagawa 2388580, Japan
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.93.211602
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We show that the coupling-constant of a quantum-induced composite field is scale invariant due to its compositeness condition. It is first demonstrated in next-to-leading order in 1/N in typical models, and then we argue that it holds exactly.
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页数：4
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