Axino-Neutrino Mixing in Gauge-Mediated Supersymmetry Breaking Models

Abstract

When the strong CP problem is solved by spontaneous breaking of an anomalous global symmetry in theories with gauge-mediated supersymmetry breaking, the pseudo Goldstone fermion (the axino) is a good candidate of a light sterile neutrino. Its mixing with neutrinos relevant for current neutrino experiments can arise in the presence of R-parity violation. The realistic four neutrino mass matrix is obtained when the see-saw mechanism is brought in, and an ansatz for the right-handed neutrino mass is constructed.

Revtex, 7 pp. Version to appear in Phys. Lett. B

References in corpus (4)

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• Where do we stand with solar neutrino oscillations?
• Neutrino Mass Spectrum with ${\nu }_{\mu }$ $\to$ ${\nu }_s$ Oscillations of Atmospheric Neutrinos
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Cited by in corpus (18)

• Neutrino Mass and Mixing with Discrete Symmetry
• Axinos as Dark Matter
• Physics at a future Neutrino Factory and super-beam facility
• Unified Models of Neutrinos, Flavour and CP Violation
• The R-Parity Violating Minimal Supergravity Model
• Phenomenological constraints on broken R parity symmetry in supersymmetry models
• Late decaying axino as CDM and its lifetime bound
• Dark matter in the Kim-Nilles mechanism
• Light Axinos from Freeze-in: production processes, phase space distributions, and Ly-$\alpha$ forest constraints
• Nonthermal Axino as Cool Dark Matter in Supersymmetric Standard Model without R-parity
• Radiative decay of the lightest neutralino in an R-parity violating supersymmetric theory
• Nonminimal supersymmetric standard model with lepton number violation
• Mixed axion/gravitino dark matter from SUSY models with heavy axinos
• Axino as a sterile neutrino and R parity violation
• Colder Freeze-in Axinos Decaying into Photons
• Displaced Vertex signatures of a pseudo-Goldstone sterile neutrino
• Scenario of Light Sterile Neutrinos with A Heavy Tau Neutrino in A Supersymmetric Model
• Soft supersymmetry breaking as the sole origin of neutrino masses and lepton number violation