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Electric dipole moment and CP violation in B -> X(s)l(+)l(-) in supergravity models with nonuniversal gaugino masses
Huang, CS; Wei, L; Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2000
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号62期号:1页码:-
摘要The constraints of electric dipole moments (EDMs) of the electron and neutron on parameter space in supergravity (SUGRA) models with nonuniversal gaugino masses are analyzed. It is shown that, with a light sparticle spectrum, a sufficient cancellation in the calculation of EDMs can happen for all phases of order I in the small tan beta case and all phases but phi mu (\phi mu\less than or similar to pi/6) of order 1 in the large tan beta case. This is in contrast with the case of MSUGRA in which, in the parameter space where cancellations among various SUSY contributions to EDMs happen, \phi(mu)\ must be less than pi/10 for small tan beta and O(10(-2)) for large tan beta. Direct CP asymmetries and the T-odd normal polarization of the lepton in B-->X(s)l(+) l(-) are investigated in these models. In the large tan beta case, A(CP)(2) and P-N for l = mu (tau) can be enhanced by about a factor of 10 (10) and 10 (3), respectively, compared to those of MSUGRA.
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Supersymmetric Standard Model Large Tan Beta Experimental Limit N=1 Supergravity Phases Neutron Decays Unification Constraints Parameters
学科领域Physics
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收录类别SCI
WOS记录号WOS:000087954100082
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12948
专题理论物理所1978-2010年知识产出
通讯作者Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Huang, CS,Wei, L,Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Electric dipole moment and CP violation in B -> X(s)l(+)l(-) in supergravity models with nonuniversal gaugino masses[J]. PHYSICAL REVIEW D,2000,62(1):-.
APA Huang, CS,Wei, L,&Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2000).Electric dipole moment and CP violation in B -> X(s)l(+)l(-) in supergravity models with nonuniversal gaugino masses.PHYSICAL REVIEW D,62(1),-.
MLA Huang, CS,et al."Electric dipole moment and CP violation in B -> X(s)l(+)l(-) in supergravity models with nonuniversal gaugino masses".PHYSICAL REVIEW D 62.1(2000):-.
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