SOME TWO-LOOP CONTRIBUTIONS TO MUON MAGNETIC DIPOLE MOMENT IN THE CP-VIOLATING MSSM
SOME TWO-LOOP CONTRIBUTIONS TO MUON MAGNETIC DIPOLE MOMENT IN THE CP-VIOLATING MSSM
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DOI：
10.1142/s0217732313501733
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发表时间：
2013-12
影响因子：
1.4
通讯作者：
Shu-Min Zhao;Fang Wang;Biao Chen;T. Feng;Hai-Bin Zhang;Xing-Dao Guo;Xi-Jie Zhan
中科院分区：
文献类型：
--
作者：
Shu-Min Zhao;Fang Wang;Biao Chen;T. Feng;Hai-Bin Zhang;Xing-Dao Guo;Xi-Jie Zhan
In the CP-violating minimal supersymmetric extension of the Standard Model (MSSM), we study the two-loop diagrams without the one-loop self-energy, and they are composed of virtual neutralino–slepton-Z. We obtain electroweak corrections to the anomalous magnetic dipole moment (MDM) of muon. With electromagnetic gauge invariance, the Wilson coefficients of dimension-5 operators contributing to the MDM of muon are deduced. To remove the ultra-violet divergences induced by the divergent sub-diagrams, we use the on-shell scheme. The numerical results are about 8.8×10-11, i.e. at the same order of present experimental precision, which indicates these two-loop diagrams are important.
