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B-meson dileptonic decays enhanced by supersymmetry with large tan beta
Xiong, ZH; Yang, JM; Xiong, ZH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
2002
发表期刊NUCLEAR PHYSICS B
ISSN0550-3213
卷号628期号:40910页码:193-216
摘要We examined the rare decays B --> X(x)e(+)e(-) and B-x --> e(+)e(-)gamma in the minimal supersymmetric model with large tan beta. Taking into account the effects of the gluino-loop and neutralino-loop with neutral Higgs exchange, we found that for a large tan beta the neutral Higgs exchanging diagrams could enhance Br(B --> X(s)tau(+)tau(-)) by a factor of 5 and Br(B-s --> tau(+)tau(-)gamma) by a couple of orders in some part of supersymmetric parameter space allowed by current experiments such as b --> sgamma, B --> K((*))e(+)e(-) and B-s --> e(+)e(-). The forward-backward asymmetry and the distributions of differential branching ratios are also found to differ significantly from the standard model results. Such enhanced branching ratios reach the level of 10(-5) and thus might be observable in the new generation of B experiments. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属CCAST, World Lab, Beijing 100080, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
关键词Anomalous Magnetic-moment Photon Energy-spectrum 2-higgs Doublet Model Leading-order Qcd Light-cone Qcd Standard Model Top-quark 2-higgs-doublet Model Rare B->x(s)l(+)l(-)
学科领域Physics
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收录类别SCI
WOS记录号WOS:000175111900006
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被引频次:38[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13529
专题理论物理所1978-2010年知识产出
通讯作者Xiong, ZH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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Xiong, ZH,Yang, JM,Xiong, ZH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.. B-meson dileptonic decays enhanced by supersymmetry with large tan beta[J]. NUCLEAR PHYSICS B,2002,628(40910):193-216.
APA Xiong, ZH,Yang, JM,&Xiong, ZH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2002).B-meson dileptonic decays enhanced by supersymmetry with large tan beta.NUCLEAR PHYSICS B,628(40910),193-216.
MLA Xiong, ZH,et al."B-meson dileptonic decays enhanced by supersymmetry with large tan beta".NUCLEAR PHYSICS B 628.40910(2002):193-216.
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