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Charged Higgs decays in models with singlet neutrino in large extra dimensions | | K. Agashe
; N.G. Deshpande
; G.-H. Wu
; | | Date: |
13 Jun 2000 | | Journal: | Phys.Lett. B489 (2000) 367-376 | | Subject: | hep-ph | | Affiliation: | ITS, University of Oregon | | Abstract: | In models with large extra dimensions and TeV scale quantum gravity, small (Dirac) neutrino masses can be obtained naturally if the right-handed neutrino propagates in the extra dimensions. In this scenario, with 2 Higgs doublets, we show that the decay of charged Higgs into {em left-handed} charged lepton (say au) and right-handed neutrino can be significantly enhanced, with O(1) branching ratio, due to the large number of Kaluza-Klein states of the right-handed neutrino. Since au’s from the standard decay of charged Higgs are {em right-handed}, the above novel charged Higgs decay can provide a distinctive signature of these models at hadron/lepton colliders. Similarly, top quark decays to b mu^+
u, b au^+
u through virtual charged Higgs can be enhanced. | | Source: | arXiv, hep-ph/0006122 | | Services: | Forum | Review | PDF | Favorites | |
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