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Zhou, Y; Zhou, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
A new renormalization scheme for the fermion field in the standard model
Source PublicationJOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
KeywordUnstable Particles Widths
AbstractIn 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.
2003
ISSN0954-3899
Volume29Issue:6Pages:1031-1044
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13283
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhou, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Zhou, Y,Zhou, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. 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.
APA Zhou, Y,&Zhou, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2003).A new renormalization scheme for the fermion field in the standard model.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,29(6),1031-1044.
MLA Zhou, Y,et al."A new renormalization scheme for the fermion field in the standard model".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 29.6(2003):1031-1044.
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