A three-parameter neutrino mass matrix with maximal C P violation

Autor(en)
Walter Grimus, Luis Lavoura
Abstrakt

Using the seesaw mechanism, we construct a model for the light-neutrino Majorana mass matrix which yields trimaximal lepton mixing together with maximal CP violation and maximal atmospheric-neutrino mixing. We demonstrate that, in our model, the light-neutrino mass matrix retains its form under the one-loop renormalization-group evolution. With our neutrino mass matrix, the absolute neutrino mass scale is a function of |Ue3||Ue3| and of the atmospheric mass-squared difference. We study the effective mass in neutrinoless ββ decay as a function of |Ue3||Ue3|, showing that it contains a fourfold ambiguity.

Organisation(en)
Teilchenphysik
Externe Organisation(en)
Universidade Técnica de Lisboa
Journal
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Band
671
Seiten
456-461
Anzahl der Seiten
6
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2008.12.041
Publikationsdatum
2009
Peer-reviewed
Ja
ÖFOS 2012
103036 Theoretische Physik
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/a-threeparameter-neutrino-mass-matrix-with-maximal-c-p-violation(dfb48f03-a135-448c-a2da-73dc94ec9d57).html