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The Maximal $$U(1)_L$$ Inverse Seesaw from $$d=5$$ Operator and Oscillating Asymmetric Sneutrino Dark Matter

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Abstract

The maximal $$U(1)_L$$ supersymmetric inverse seesaw mechanism (M$$L$$SIS) provides a natural way to relate asymmetric dark matter (ADM) with neutrino physics. In this paper we point out that, M$$L$$SIS is a natural outcome if one dynamically realizes the inverse seesaw mechanism in the next-to minimal supersymmetric standard model (NMSSM) via the dimension-five operator $$(N)^2S^2/M_*$$, with $$S$$ the NMSSM singlet developing TeV scale VEV; it slightly violates lepton number due to the suppression by the fundamental scale $$M_*$$, thus preserving $$U(1)_L$$ maximally. The resulting sneutrino is a distinguishable ADM candidate, oscillating and favored to have weak scale mass. A fairly large annihilating cross section of such a heavy ADM is available due to the presence of singlet.

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Journal
1102.5644
10.1140/epjc/s10052-016-4114-9