Electric and anomalous magnetic dipole moments of the muon in the MSSM

被引:32
|
作者
Cheung, Kingman [1 ,2 ,3 ]
Kong, Otto C. W. [4 ,5 ]
Lee, Jae Sik [2 ]
机构
[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan
[2] Natl Ctr Theoret Sci, Div Phys, Hsinchu 300, Taiwan
[3] Konkuk Univ, Div Quantum Phases & Devices, Seoul 143701, South Korea
[4] Natl Cent Univ, Dept Phys, Chungli 32054, Taiwan
[5] Natl Cent Univ, Ctr Math & Theoret Phys, Chungli 32054, Taiwan
来源
关键词
Supersymmetry Phenomenology; SUPERSYMMETRIC 2-LOOP CORRECTIONS; STANDARD MODEL; HIGGS BOSONS; COMPUTATIONAL TOOL; G-2; ELECTROWEAK; SUPERGRAVITY; LIGHT; PHENOMENOLOGY; CONSTRAINTS;
D O I
10.1088/1126-6708/2009/06/020
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We study the electric dipole moment (EDM) and the anomalous magnetic dipole moment (MDM) of the muon in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the contributions from the chargino- and neutralino-mediated one-loop graphs and the dominant two-loop Higgs-mediated Barr-Zee diagrams. We improve earlier calculations by incorporating CP-violating Higgs-boson mixing effects and the resummed threshold corrections to the Yukawa couplings of the charged leptons as well as that of the bottom quark. The analytic correlation between the muon EDM and MDM is explicitly presented at one- and two-loop levels and, through several numerical examples, we illustrate its dependence on the source of the dominant contributions. We have implemented the analytic expressions for the muon EDM and MDM in an updated version of the public code CPsuperH2.0.
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页数:23
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