OITS-555 Penguin B Decays b → sl + l − and b → sg ∗
نویسنده
چکیده
The penguin mediated processes b → sg and b → sl+l− are studied. In the Standard Model, for the leptonic modes improvement in experimental limits will put strigient bounds on the top mass, where the present limit from b → sμ+μ− is 390 GeV. For hadronic penguin processes, although the gluonic penguin dominates, we find the electroweak contribution are around 30% for the upper range allowed top mass. The branching ratio for B → Xsφ is predicted to be in the range (0.6 ∼ 2)× 10−4. Effects of the charged Higgs in two Higgs doublet models are discussed. Typeset using REVTEX ∗Work supported in part by the Department of Energy Grant No. DE-FG06-85ER40224. Invited talk presented at the 27th International Conference on High Energy Physics, Glasgow, Scotland. †E-mail: [email protected] ‡E-mail: [email protected]
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تاریخ انتشار 1994