One-loop on-shell renormalization of MSSM vertexes

ZHAO Shu-Min; FENG Tai-Fu; WANG Fang; GAO Tie-Jun; ZHANG Yin-Jie

doi:10.1088/1674-1137/37/5/053101

Chinese Physics C> 2013, Vol. 37> Issue(5) : 053101 DOI: 10.1088/1674-1137/37/5/053101

One-loop on-shell renormalization of MSSM vertexes

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The on-shell renormalization scheme for electroweak theory is well studied in the standard model (SM), but a consistent on-shell renormalization scheme for the minimal supersymmetric standard model (MSSM) is still unknown. In the MSSM, we study the on-shell scheme for three vertexes: Zl^Il^I, W⁺v^Il^I and , with virtual SUSY particles (chargino, sneutrino, neutralino and slepton) at one-loop order. Instead of the amplitude of a single triangle diagram, the sum of the amplitude of triangle diagrams belonging to one suit can be renormalized in the on-shell scheme. One suit points out that the internal virtual particles are consistent. The zero-momentum scheme is also used for the renormalization. The two schemes can make the renormalized results decoupled, and in the MSSM some of the special characters of the on-shell scheme are shown. This work is propitious in completing the on-shell renormalization scheme in the MSSM.

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ZHAO Shu-Min, FENG Tai-Fu, WANG Fang, GAO Tie-Jun and ZHANG Yin-Jie. One-loop on-shell renormalization of MSSM vertexes[J]. Chinese Physics C, 2013, 37(5): 053101. doi: 10.1088/1674-1137/37/5/053101

ZHAO Shu-Min, FENG Tai-Fu, WANG Fang, GAO Tie-Jun and ZHANG Yin-Jie. One-loop on-shell renormalization of MSSM vertexes[J]. Chinese Physics C, 2013, 37(5): 053101. doi: 10.1088/1674-1137/37/5/053101 shu

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Received: 2012-06-25
Revised: 2012-08-16

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

One-loop on-shell renormalization of MSSM vertexes

Corresponding author: ZHAO Shu-Min,

Received Date: 2012-06-25

Accepted Date: 2012-08-16

Available Online: 2013-05-05

Abstract: The on-shell renormalization scheme for electroweak theory is well studied in the standard model (SM), but a consistent on-shell renormalization scheme for the minimal supersymmetric standard model (MSSM) is still unknown. In the MSSM, we study the on-shell scheme for three vertexes: Zl^Il^I, W⁺v^Il^I and , with virtual SUSY particles (chargino, sneutrino, neutralino and slepton) at one-loop order. Instead of the amplitude of a single triangle diagram, the sum of the amplitude of triangle diagrams belonging to one suit can be renormalized in the on-shell scheme. One suit points out that the internal virtual particles are consistent. The zero-momentum scheme is also used for the renormalization. The two schemes can make the renormalized results decoupled, and in the MSSM some of the special characters of the on-shell scheme are shown. This work is propitious in completing the on-shell renormalization scheme in the MSSM.

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One-loop on-shell renormalization of MSSM vertexes

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