Skip to main content

Research Repository

Advanced Search

Higgs-mediated B<SUB>s,d</SUB>⁰-->μτ,eτ and /τ-->3μ,eμμ decays in supersymmetric seesaw models

Dedes, A.; Ellis, J.; Raidal, M.

Authors

A. Dedes

J. Ellis

M. Raidal



Abstract

We study the rates allowed for the Higgs-mediated decays Bs,d0→μτ,eτ and τ→μμμ,eμμ in supersymmetric seesaw models, assuming that the only source of lepton flavour violation (LFV) is the renormalization of soft supersymmetry-breaking terms due to off-diagonal singlet-neutrino Yukawa interactions. These decays are strongly correlated with, and constrained by, the branching ratios for Bs,d0→μμ and τ→μ(e)γ. Parametrizing the singlet-neutrino Yukawa couplings Yν and masses MNi in terms of low-energy neutrino data, and allowing the flavour-universal soft masses for sleptons and for squarks, as well as those for the two Higgs doublets, to be different at the unification scale, we scan systematically over the model parameter space. Neutrino data and the present experimental constraints set upper limits on the Higgs-mediated LFV decay rates Br(Bs0→μτ,eτ)4×10−9 and Br(τ→μμμ,eμμ)4×10−10.

Citation

Dedes, A., Ellis, J., & Raidal, M. (2002). Higgs-mediated Bs,d⁰-->μτ,eτ and /τ-->3μ,eμμ decays in supersymmetric seesaw models. Physics Letters B, 549(1-2), 159-169. https://doi.org/10.1016/s0370-2693%2802%2902900-3

Journal Article Type Article
Publication Date 2002-11
Deposit Date Jan 9, 2009
Journal Physics Letters B
Print ISSN 0370-2693
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 549
Issue 1-2
Pages 159-169
DOI https://doi.org/10.1016/s0370-2693%2802%2902900-3
Keywords Lepton flavor nonconservation, Large-tan-beta, Standard model, Neutrino mass, B-0->Mu(+)Mu(-), Conservation, Violation.


You might also like



Downloadable Citations