B→Kμ+μ-: light higgs and fourth generation

Godbole, R. M. ; Turke, U. ; Wirbel, M. (1987) B→Kμ+μ-: light higgs and fourth generation Physics Letters B, 194 (2). pp. 302-306. ISSN 0370-2693

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037026...

Related URL: http://dx.doi.org/10.1016/0370-2693(87)90547-8


We examine the current limit on the branching ratio for B→Kμ+μ- and the theoretical predictions for B→KH→Kμ+μ- in three- and four-generation models. It is shown that for a heavy top quark mt60 GeV a light Higgs, mH ≤ 3.5 GeV, is disfavoured in a three-generation model. We also find that the existence of a light Higgs constrains the four-generation model quite strongly through the above process.

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