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题名: A new renormalization scheme for the fermion field in the standard model
作者: Zhou, Y
刊名: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期: 2003
卷号: 29, 期号:6, 页码:1031-1044
关键词: UNSTABLE PARTICLES ;  WIDTHS
学科分类: Physics
通讯作者: Zhou, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: In order to obtain proper wavefunction renormalization constants for unstable fermions and be consistent with Breit-Wigner formula in the resonant region, we have assumed an extension of the LSZ reduction formula for unstable fermions and adopted an on-shell mass renormalization scheme in the framework without field renormalization. The comparison of the gauge dependence of physical amplitude between on-shell mass renormalization and complex-pole mass renormalization has been discussed. After obtaining the fermion wavefunction renormalization constants, we extend them to two matrices in order to include the contributions of off-diagonal two-point diagrams at fermion external legs for the convenience of calculations of S-matrix elements.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000183898300007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13283
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zhou, Y. A new renormalization scheme for the fermion field in the standard model[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2003,29(6):1031-1044.
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