https://doi.org/10.1140/epjp/s13360-023-04678-8
Regular Article
Combinations of the 
-
reflection symmetry and texture zeros in the Dirac neutrino mass matrix of the seesaw model
1
Department of Physics, Liaoning Normal University, 116029, Dalian, China
2
Center for Theoretical and Experimental High Energy Physics, Liaoning Normal University, 116029, Dalian, China
Received:
5
September
2023
Accepted:
9
November
2023
Published online:
29
November
2023
In this paper, we have studied the combinations of texture zeros with the — reflection symmetry (which predicts 
and 
) so that the predictive power of the seesaw model can be further improved: in the basis of the right-handed neutrino mass matrix being diagonal, we impose some texture zeros on the Dirac neutrino mass matrix which obeys the — reflection symmetry, and then study its phenomenological consequences for the neutrino observables and leptogenesis. We have first performed the study in the general seesaw model with three right-handed neutrinos. Then, to further reduce the free parameters of the seesaw model and thus further improve its predictive power, we have performed the study in the following two simplified scenarios: reducing the general seesaw model to the minimal seesaw model (with only two right-handed neutrinos); combining the — reflection symmetry with the TM1 and TM2 mixings.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
