Radiative seesaw corrections and charged-lepton decays in a model with soft flavour violation
- Author(s)
- E. H. Aeikens, P. M. Ferreira, W. Grimus, D. Jurčiukonis, L. Lavoura
- Abstract
We consider the one-loop radiative corrections to the light-neutrino mass matrix and their consequences for the predicted branching ratios of the five lepton-flavour-violating decays ℓ1−→ℓ2−ℓ3+ℓ3− in a two-Higgs-doublet model furnished with the type-I seesaw mechanism and soft lepton-flavour violation. We find that the radiative corrections are very significant; they may alter the predicted branching ratios by several orders of magnitude and, in particular, they may help explain why BR (μ− → e−e+e−) is strongly suppressed relative to the branching ratios of the decays of the τ−. We conclude that, in any serious numerical assessment of the predictions of this model, it is absolutely necessary to take into account the one-loop radiative corrections to the light-neutrino mass matrix.
- Organisation(s)
- Particle Physics
- External organisation(s)
- Instituto Superior de Engenharia de Lisboa, Universidade de Lisboa, Associação EURATOM/IST, Vilnius University (VU)
- Journal
- Journal of High Energy Physics
- Volume
- 2020
- No. of pages
- 28
- ISSN
- 1029-8479
- DOI
- https://doi.org/10.1007/JHEP12(2020)122
- Publication date
- 12-2020
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103034 Particle physics, 103036 Theoretical physics
- Keywords
- ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/radiative-seesaw-corrections-and-chargedlepton-decays-in-a-model-with-soft-flavour-violation(7578a7ae-956c-40ef-b975-e185c64f00c1).html