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题名: B-s ->mu(+) mu(-) and B -> X-s mu(+)mu(-) in MSSM
作者: Huang, CS ;  Wu, XH
刊名: NUCLEAR PHYSICS B
出版日期: 2003
卷号: 657, 期号:40911, 页码:304-332
关键词: LARGE TAN-BETA ;  RARE B-DECAYS ;  MINIMAL SUPERGRAVITY MODEL ;  STANDARD MODEL ;  2-HIGGS-DOUBLET MODEL ;  BRANCHING FRACTION ;  QCD CORRECTIONS ;  CP VIOLATION ;  ART. ;  SUPERSYMMETRY
学科分类: Physics
通讯作者: Huang, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Pure leptonic and semileptonic rare B decays, B-s --> mu(+)mu(-) and B --> X(s)mu(+)mu(-) in the minimal supersymmetric Standard Model (MSSM), in particular, gluino and neutralino contributions to the decays, are discussed under Br(B --> X(s)gamma) and other experimental constraints. The general scalar quark mass matrices as the new sources of flavor violation are considered. We present Wilson coefficients of bs transitions from gamma, Z, and neutral Higgs boson penguin diagrams by using vertex mixing method to deal with scalar down-type quark flavor changing and also give their expressions in MIA to show different sources of enhancements. We find that under the experimental constraints, with large mixing of left- and right-handed sbottom, C-10((1)) can be enhanced by 10% compared with SM, in two cases, heavy gluino and fine-tuning between delta(23)(dLL) (delta(23)(dRR)) and delta(23)(dLR) (delta(23)(dRL)) terms in C-7((1)). Particularly, C-10 and C'(10) can reach a 20% enhancement in some regions of parameters under experimental constraints. When CP-odd Higgs A(0) is not too heavy (similar to 250 GeV), and tan beta is large (similar to 40), neutral Higgs boson penguins with gluino and down-type squark in the loop can significantly contribute to the bs transition and the contributions can compete with those due to the chargino and up-type squark loop. (C) 2003 Elsevier Science B.V. All rights reserved.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000182436700010
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内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13297
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,Wu, XH. B-s ->mu(+) mu(-) and B -> X-s mu(+)mu(-) in MSSM[J]. NUCLEAR PHYSICS B,2003,657(40911):304-332.
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