Regular Article - Theoretical Physics
On the role of leptonic CPV phases in cLFV observables
Pôle Théorie, Laboratoire de Physique des 2 Infinis Irène Joliot Curie (UMR 9012), CNRS/IN2P3, 15 Rue Georges Clemenceau, 91400, Orsay, France
2 Laboratoire de Physique de Clermont (UMR 6533), CNRS/IN2P3, Université Clermont Auvergne, 4 Av. Blaise Pascal, 63178, Aubière Cedex, France
Accepted: 15 October 2021
Published online: 19 November 2021
In extensions of the standard model by Majorana fermions, the presence of additional CP violating phases has been shown to play a crucial role in lepton number violating processes. In this work we show that (Dirac and Majorana) CP violating phases can also lead to important effects in charged lepton flavour violating (cLFV) transitions and decays, in some cases with a significant impact for the predicted rates of cLFV observables. We conduct a thorough exploration of these effects in several cLFV observables, and discuss the implications for future observation. We emphasise how the presence of leptonic CP violating phases might lead to modified cLFV rates, and to a possible loss of correlation between cLFV observables.
© The Author(s) 2021
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