Abstract
The amplitude for the one-loop-induced decay [ital H][sup +][r arrow][ital W][sup +][gamma] 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 [ital t] and [ital b] quarks. A numerical evaluation shows that if the charged Higgs boson is lighter than the [ital t] quark, then the branching ratio for this process can be as large as [similar to]7[times]10[sup [minus]5]. For a wide range of parameters, this could remain well within the range of detect- ability at the CERN LHC and SSC.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
