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Dirac Leptogenesis in extended nMSSM

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arxiv 0803.1720 v3 pith:NVV6WO6B submitted 2008-03-12 hep-ph

Dirac Leptogenesis in extended nMSSM

classification hep-ph
keywords diracbreakingconservingextendedleptogenesisneutrinonmssmsector
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We show that a version of the nearly Minimal Supersymmetric Standard Model (nMSSM), extended only in the singlet sector to include the additional superfields of right-handed neutrinos and very heavy Dirac particles conserving $B-L$, admits a viable scenario for Dirac leptogenesis and naturally small Dirac neutrino masses. The origin of the ($B-L$)-conserving high singlet neutrino scale and the desired supersymmetry breaking terms is associated with dynamical supersymmetry breaking in the hidden sector.

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