A Supersymmetric Model with Dirac Neutrino Masses
Abstract
New models have recently been proposed in which a second Higgs doublet couples only to the lepton doublets and right-handed neutrinos, yielding Dirac neutrino masses. The vacuum value of this second "nu-Higgs" doublet is made very small by means of a very softly-broken or U(1) symmetry. The latter is technically natural and avoids fine-tuning and very light scalars. We consider a supersymmetric version of this model, in which two additional doublets are added to the MSSM. If kinematically allowed, the decay of the heavy MSSM scalar into charged nu-Higgs scalars will yield dilepton events which can be separated from the W-pair background. In addition, the nu-Higgsinos can lead to very dramatic tetralepton, pentalepton and hexalepton events which have negligible background and can be detected at the LHC and the Tevatron.
Keywords
Cite
@article{arxiv.0912.1599,
title = {A Supersymmetric Model with Dirac Neutrino Masses},
author = {Gardner Marshall and Mathew McCaskey and Marc Sher},
journal= {arXiv preprint arXiv:0912.1599},
year = {2010}
}
Comments
18 pages, 3 figures, 6 tables; PRD version