| Title |
Radiative seesaw corrections and charged-lepton decays in a model with soft flavour violation / |
| Authors |
Aeikens, E.H ; Ferreira, P.M ; Grimus, W ; Jurčiukonis, Darius ; Lavoura, L |
| DOI |
10.1007/JHEP12(2020)122 |
| Full Text |
|
| Is Part of |
Journal of high energy physics.. New York : Springer. 2020, vol. 12, p. [1-29].. ISSN 1126-6708. eISSN 1029-8479 |
| Keywords [eng] |
lepton-flavour-violating decays ; neutrino ; radiative corrections ; branching ratios |
| Abstract [eng] |
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 ℓ−1→ℓ−2ℓ+3ℓ−3 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. |
| Published |
New York : Springer |
| Type |
Journal article |
| Language |
English |
| Publication date |
2020 |
| CC license |
|
