Neutrino Physics and Spontaneous CP Violation in the $μν$SSM

Details Neutrino Physics and Spontaneous CP Violation in the $μν$SSM Neutrino Physics and Spontaneous CP Violation in the $μν$SSM

2009-04-20

arxiv.org/abs/0904.3112v3

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.

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