Renormalization of the effective Lagrangian with spontaneous symmetry breaking: The SU(2) case

	Renormalization of the effective Lagrangian with spontaneous symmetry breaking: The SU(2) case
	Yan QS(严其舒); Du DS(杜东生); Yan, QS; Du, DS
刊名	PHYSICAL REVIEW D
	2004
卷号	69 期号:8 页码:85006
通讯作者	Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
英文摘要	We study the renormalization of the nonlinear effective SU(2) Lagrangian up to O(p(4)) with spontaneous symmetry breaking. The Stueckelberg transformation, the background field gauge, the Schwinger proper time and heat kernel method, and the covariant short distance expansion technology guarantee gauge covariance and incorporate the Ward (Slavnov-Taylor) identities in the calculations. A modified power counting rule is introduced to consistently estimate and control the contributions of higher loops and higher-dimension operators. The one-loop renormalization group equations of the effective couplings are provided and analyzed. We find that the difference between the results obtained from the direct method and the renormalization group equation method can be quite large when the Higgs scalar boson is far below its decoupling limit. The exact one-loop calculation of d(1) in the renormalizable SU(2) Higgs model is provided to understand such a difference. A better way of calculating at the one-loop level in the framework of the effective theory method is suggested.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]	Astronomy & Astrophysics ; Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000221277400067
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240827]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yan QS,Du DS,Yan, QS,et al. Renormalization of the effective Lagrangian with spontaneous symmetry breaking: The SU(2) case[J]. PHYSICAL REVIEW D,2004,69(8):85006.
APA	严其舒,杜东生,Yan, QS,&Du, DS.(2004).Renormalization of the effective Lagrangian with spontaneous symmetry breaking: The SU(2) case.PHYSICAL REVIEW D,69(8),85006.
MLA	严其舒,et al."Renormalization of the effective Lagrangian with spontaneous symmetry breaking: The SU(2) case".PHYSICAL REVIEW D 69.8(2004):85006.