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Abstract |
We study charged lepton flavour violation in a scenario in which light neutrino masses are generated via the inverse seesaw mechanism with 3+3 gauge singlet fermions, N, and Sj, i, j = 1, 2, 3. Lepton mixing is predicted with the help of the flavour symmetries D(3 n2) and D(6 n2) combined with CP. In the neutral lepton sector, the non-trivial flavour structure is only encoded in the Dirac neutrino Yukawa matrix (the coupling relating left-handed lepton doublets and gauge singlets N,). Current experimental bounds on the processes mu- e y, mu- 3 e, μ- e conversion in nuclei and the tau lepton decays a-l y and a-3l, l = e, mu, do not constrain the considered parameter space of this scenario. Prospective limits on the decay mu- 3 e and μ- e conversion in aluminium instead can markedly reduce the available parameter space. We also comment on the effects of the heavy sterile states on light neutrino masses and lepton mixing. |
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Address |
[Di Meglio, F. P.; Hagedorn, C.] Univ Valencia, Inst Fis Corpuscular, Catedrat Jose Beltran 2, Paterna 46980, Spain, Email: francescopaolo.dimeglio@ific.uv.es; |
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