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题名: B-meson dileptonic decays enhanced by supersymmetry with large tan beta
作者: Xiong, ZH ;  Yang, JM
刊名: NUCLEAR PHYSICS B
出版日期: 2002
卷号: 628, 期号:40910, 页码:193-216
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(-)
学科分类: Physics
通讯作者: Xiong, ZH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000175111900006
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内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13529
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:
Xiong, ZH,Yang, JM. B-meson dileptonic decays enhanced by supersymmetry with large tan beta[J]. NUCLEAR PHYSICS B,2002,628(40910):193-216.
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