Raychaudhuri, Sreerup ; Raychaudhuri, Amitava (1994) Rare decay H+→W+γin the minimal supersymmetric standard model Physical Review D - Particles, Fields, Gravitation and Cosmology, 50 (1). pp. 412-427. ISSN 1550-7998
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Official URL: http://prd.aps.org/abstract/PRD/v50/i1/p412_1
Related URL: http://dx.doi.org/10.1103/PhysRevD.50.412
Abstract
The amplitude for the one-loop-induced decay H+→W+γ is calculated in the 't Hooft-Feynman gauge in the minimal supersymmetric standard model concentrating on the scalar sector only. It is shown that Feynman graphs with gauge bosons, physical and unphysical scalars, and Faddeev-Popov ghosts in the loops undergo large cancellations to contribute negligibly to the final amplitude. The dominant contribution comes from graphs with internal t and b quarks. A numerical evaluation shows that if the charged Higgs boson is lighter than the t quark, then the branching ratio for this process can be as large as ~7×10−5. For a wide range of parameters, this could remain well within the range of detect- ability at the CERN LHC and SSC.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 43214 |
Deposited On: | 10 Jun 2011 11:41 |
Last Modified: | 10 Jun 2011 11:41 |
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