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Higgs-boson and Z-boson flavor-changing neutral-current decays correlated with B-meson decays in the littlest Higgs model with T parity
Han, Xiao-Fang; Wang, Lei; Yang, Jin Min; Han, XF , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
2008
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号78期号:7页码:-
摘要In the littlest Higgs model with T-parity new flavor-changing interactions between mirror fermions and the standard model (SM) fermions can induce various flavor-changing neutral-current decays for B-mesons, the Z-boson, and the Higgs boson. Since all these decays induced in the littlest Higgs with T-parity model are correlated, in this work we perform a collective study for these decays, namely, the Z-boson decay Z -> b(s)overbar, the Higgs-boson decay h -> b(s)overbar, and the B-meson decays B -> X(s)gamma, B(s)->mu(+)mu(-), and B -> X(s)mu(+)mu(-). We find that under the current experimental constraints from the B-decays, the branching ratios of both Z -> b(s)overbar and h -> b(s)overbar can still deviate from the SM predictions significantly. In the parameter space allowed by the B-decays, the branching ratio of Z -> b(s)overbar can be enhanced up to 10(-7) (about one order above the SM prediction) while h -> b(s)overbar can be much suppressed relative to the SM prediction (about one order below the SM prediction).
部门归属[Han, XF; Wang, L; Yang, JM] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Top-quark Cp Nonconservation Technicolor Models Particle Physics Supersymmetry
学科领域Physics
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收录类别SCI
WOS记录号WOS:000260574800097
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被引频次:21[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/311006/5450
专题理论物理所1978-2010年知识产出
通讯作者Han, XF , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
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Han, Xiao-Fang,Wang, Lei,Yang, Jin Min,et al. Higgs-boson and Z-boson flavor-changing neutral-current decays correlated with B-meson decays in the littlest Higgs model with T parity[J]. PHYSICAL REVIEW D,2008,78(7):-.
APA Han, Xiao-Fang,Wang, Lei,Yang, Jin Min,&Han, XF , Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China.(2008).Higgs-boson and Z-boson flavor-changing neutral-current decays correlated with B-meson decays in the littlest Higgs model with T parity.PHYSICAL REVIEW D,78(7),-.
MLA Han, Xiao-Fang,et al."Higgs-boson and Z-boson flavor-changing neutral-current decays correlated with B-meson decays in the littlest Higgs model with T parity".PHYSICAL REVIEW D 78.7(2008):-.
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