Anomalous decay of heavy fermions by electroweak instanton

	Anomalous decay of heavy fermions by electroweak instanton
	Yang KY(杨克炎); Yang, KY
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	1997
卷号	12 期号:19 页码:3365-3381
英文摘要	The presence of a heavy fermion doublet in the electroweak instanton probably leads to unsuppressed fermion number nonconservation. By calculating numerically the effective potential barrier of electroweak instanton with heavy fermion in Minkowski space by using semiclassical approximation, it is shown that, if the mass of heavy fermion exceeds a critical value m(f)(cr) = 9.2 TeV (for M-H = M-W), the tunneling by electroweak instanton should be unsuppressed and the heavy fermion decays with fermion number violation. The dependence of critical fermion mass on the Higgs mass is also presented.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:A1997XJ28700005
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239898]
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	Yang KY,Yang, KY. Anomalous decay of heavy fermions by electroweak instanton[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,1997,12(19):3365-3381.
APA	杨克炎,&Yang, KY.(1997).Anomalous decay of heavy fermions by electroweak instanton.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,12(19),3365-3381.
MLA	杨克炎,et al."Anomalous decay of heavy fermions by electroweak instanton".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 12.19(1997):3365-3381.