| Rare decays B_(s,d)~0→e+e~- in a top quark two-Higgs-doublet model |
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| 引用本文： | 吕林霞,张国芳,宋金璠,鲁公儒.Rare decays B_(s,d)~0→e+e~- in a top quark two-Higgs-doublet model[J].中国物理 C,2010(2). |
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| 作者姓名： | 吕林霞 张国芳 宋金璠 鲁公儒 |
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| 作者单位： | Department;Physics;Nanyang;Normal;University;He'nan; |
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| 基金项目： | Supported by National Natural Science Foundation of CHina (10947020);;Fund of He'nan Educational Committee for Youth Backbone Scholars in Colleges and Universities;;Special Study Foundation of Nanyang Normal University (nynu200750) |
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| 摘 要： | In the framework of T2HDM,we calculated the new physics contributions involving neutral Higgs bosons to the branching ratios of Bs0,d→e+e-(= e,μ) decays.Comparing the theoretical predictions with the experimental upper-limits,we found that(a) The data of Br(B0d →e+e-) give the upper bound on tanβ:tanβ 22,while Br(Bs0 →e+e-) give tanβ 12 for fixed δ = 0°,mH+= 350 GeV,mH0 = 160 GeV,mh0 = 115 GeV and mA0 = 120 GeV;(b) A light neutral Higgs boson mass mh0(mA0) less than 50 GeV(120 GeV) is excluded by the data o...
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