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题名: Electric dipole moment and CP violation in B -> X(s)l(+)l(-) in supergravity models with nonuniversal gaugino masses
作者: Huang, CS ;  Wei, L
刊名: PHYSICAL REVIEW D
出版日期: 2000
卷号: 62, 期号:1, 页码:-
关键词: SUPERSYMMETRIC STANDARD MODEL ;  LARGE TAN BETA ;  EXPERIMENTAL LIMIT ;  N=1 SUPERGRAVITY ;  PHASES ;  NEUTRON ;  DECAYS ;  UNIFICATION ;  CONSTRAINTS ;  PARAMETERS
学科分类: Physics
通讯作者: Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000087954100082
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12948
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Huang, CS,Wei, L. 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):-.
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