Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-09-04
Phys.Lett.B672:235-239,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 5 figures and references added
Scientific paper
10.1016/j.physletb.2008.12.068
We consider extensions of the next-to-minimal supersymmetric model (NMSSM) in which the observed neutrino masses are described in terms of effective dimension six (or seven) rather than dimension five operators. All such operators respect the discrete symmetries of the model. The new particles associated with the double (or triple) seesaw mechanism can have sizable couplings to the known leptons, even with a TeV seesaw scale. In the latter case some of these new short-lived particles could be produced and detected at the LHC.
Gogoladze Ilia
Okada Nobuchika
Shafi Qaisar
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