Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-04-20
JHEP 0908:105,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
32 pages, 8 figures, version to appear in JHEP, a discussion on EDMs added
Scientific paper
10.1088/1126-6708/2009/08/105
The $\mu\nu$SSM provides a solution to the $\mu$ problem of the MSSM and explains the origin of neutrino masses by simply using right-handed neutrino superfields. We have completed the analysis of the vacua in this model, studying the possibility of spontaneous CP violation through complex Higgs and sneutrino vacuum expectation values. As a consequence of this process, a complex MNS matrix can be present. Besides, we have discussed the neutrino physics and the associated electroweak seesaw mechanism in the $\mu\nu$SSM, including also phases. Current data on neutrino masses and mixing angles can easily be reproduced.
Fidalgo Javier
Lopez-Fogliani Daniel E.
Munoz Carlos
Ruiz de Austri Roberto
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