A new mechanism of neutrino mass generation in the NMSSM with broken lepton number

Abstract

In the Minimal Supersymmetric Standard Model with bilinear R-parity violation, only one neutrino eigenstate acquires a mass at tree level, consequently experimental data on neutrinos cannot be accommodated at tree level. We show that in the Next-to-Minimal extension, where a gauge singlet superfield is added to primarily address the so-called $\mu$-problem, it is possible to generate two massive neutrino states at tree level. Hence, the global three-flavour neutrino data can be reproduced at tree level, without appealing to loop dynamics which is vulnerable to model-dependent uncertainties. We give analytical expressions for the neutrino mass eigenvalues and present examples of realistic parameter choices.

9 pages, 2 figures; further clarifications added, to appear in PLB

References in corpus (3)

• Massive neutrinos and cosmology
• An origin for small neutrino masses in the NMSSM
• Nonminimal supersymmetric standard model with lepton number violation

Cited by in corpus (14)

• The Next-to-Minimal Supersymmetric Standard Model
• Neutrino masses and mixing, lightest neutralino decays and a solution to the $\mu$ problem in supersymmetry
• Analysis of the parameter space and spectrum of the $\mu \nu$SSM
• Radiative contribution to neutrino masses and mixing in $\mu \nu$SSM
• Theoretical upper bound on the mass of the LSP in the MNSSM
• SUSY radiative corrections on mu-tau neutrino refraction including possible R-parity breaking interactions
• A possible connection between neutrino mass generation and the lightness of a NMSSM pseudoscalar
• Neutrino masses from a pseudo-Dirac Bino
• Dark matter and neutrino masses in the R-parity violating NMSSM
• One-loop contribution to the neutrino mass matrix in NMSSM with right-handed neutrinos and tri-bimaximal mixing
• Implications of vacuum stability constraints on the nonminimal supersymmetric standard model with lepton number violation
• Phenomenological Aspects of R-parity Violating Supersymmetry with A Vector-like Extra Generation
• Extending the MSSM with singlet Higgs and right handed neutrino for the self-interacting dark matter
• SUSY: New Perspectives and Variants