共 50 条
Electric dipole moments in the MSSM reloaded
被引:101
|作者:
Ellis, John
[1
]
Lee, Jae Sik
[2
,3
,4
,5
]
Pilaftsis, Apostolos
[6
]
机构:
[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
[2] Natl Ctr Theoret Sci, Div Phys, Hsinchu, Taiwan
[3] Natl Cent Univ, Dept Phys, Chungli 32054, Taiwan
[4] Natl Cent Univ, Ctr Math & Theoret Phys, Chungli 32054, Taiwan
[5] Acad Sinica, Inst Phys, Taipei, Taiwan
[6] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England
来源:
关键词:
Supersymmetric Standard Model;
CP violation;
D O I:
10.1088/1126-6708/2008/10/049
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 present a detailed study of the Thallium, neutron, Mercury and deuteron electric dipole moments (EDMs) in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the complete set of one-loop graphs, the dominant Higgs-mediated two-loop diagrams, the complete CP-odd dimension-six Weinberg operator and the Higgs-mediated four-fermion operators. We improve upon earlier calculations by including the resummation effects due to CP-violating Higgs-boson mixing and to threshold corrections to the Yukawa couplings of all up- and down-type quarks and charged leptons. As an application of our study, we analyse the EDM constraints on the CPX, trimixing and Maximally CP- and Minimally Flavour-Violating (MCPMFV) scenarios. Cancellations may occur among the CP- violating contributions to the three measured EDMs arising from the 6 CP- violating phases in the MCPMFV scenario, leaving open the possibility of relatively large contributions to other CP- violating observables. The analytic expressions for the EDMs are implemented in an updated version of the code CPsuperH2.0.
引用
收藏
页数:59
相关论文