Axino Light Dark Matter and Neutrino Masses with R-parity Violation

Abstract

Motivated by the recent observation of the 511 keV $\gamma$-ray line emissions from the galactic bulge and an explanation for it by the decays of light dark matter particles, we consider the light axino whose mass can be in the 1-10 MeV range, particularly, in the context of gauge-mediated supersymmetry breaking models. We discuss the production processes and cosmological constraints for the light axino dark matter. It is shown that the bilinear R-parity violating terms provide an appropriate mixing between the axino and neutrinos so that the light axino decays dominantly to $e^{+}{e}^{-}\nu$. We point out that the same bilinear R-parity violations consistently give both the lifetime of the axino required to explain the observed 511 keV $\gamma$-rays and the observed neutrino masses and mixing.

arXiv comment10 pages

References in corpus (28)

• Theories with Gauge-Mediated Supersymmetry Breaking
• MeV Dark Matter: Has It Been Detected?
• Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis
• The all-sky distribution of 511 keV electron-positron annihilation emission
• Axinos as Cold Dark Matter
• Early SPI/INTEGRAL measurements of galactic 511 keV line emission from positron annihilation
• Axinos as Dark Matter
• Gamma-Ray Constraint on Galactic Positron Production by MeV Dark Matter
• Early SPI/INTEGRAL contraints on the morphology of the 511 keV line emission in the 4th galactic quadrant
• Axino Mass in Supergravity Models
• Axino Mass
• Possible Evidence For Axino Dark Matter In The Galactic Bulge
• Probing MeV Dark Matter at Low--Energy $e^{+}{e}^{-}$ Colliders
• Unstable Relics as a Source of Galactic Positrons
• Constraints on dark matter and the shape of the Milky Way dark halo from the 511 keV line
• Constraints on Light Dark Matter From Core-Collapse Supernovae
• One-loop Corrected Neutrino Masses and Mixing in the Supersymmetric Standard Model without R-parity
• Possible Evidence for MeV Dark Matter In Dwarf Spheroidals
• Late decaying axino as CDM and its lifetime bound
• Dark Matter Annihilation: the origin of cosmic gamma-ray background at 1-20 MeV
• Implication of Super-Kamiokande Data on R-parity Violation
• Nonthermal Axino as Cool Dark Matter in Supersymmetric Standard Model without R-parity
• 511 keV line from Q balls in the Galactic Center
• Cosmic gamma-ray background from Type Ia supernovae revisited: Evidence for missing gamma-rays at MeV
• 511 KeV photons from superconducting cosmic strings
• A dark matter solution from the supersymmetric axion model
• 511 keV Gamma Ray from Moduli Decay in the Galactic Bulge
• Search for resonant sneutrino production at sqrt(s) = 183 to 208 GeV

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• Sterile neutrino dark matter in $B-L$ extension of the standard model and galactic 511 keV line
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• A minimal model linking two great mysteries: neutrino mass and dark matter
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• Stau as the Lightest Supersymmetric Particle in R-Parity Violating SUSY Models: Discovery Potential with Early LHC Data
• MeV-GeV $\gamma$-ray telescopes probing axino LSP/gravitino NLSP as dark matter in the $\mu \nu$SSM
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• Axino dark matter with R-parity violation and 130 GeV gamma-ray line
• Exciting dark matter in the galactic center
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• Overview of searches for dark matter at the LHC
• Dark and visible matter with broken R-parity and the axion multiplet
• Electroweakino searches at the HL-LHC in the baryon number violating MSSM
• Colder Freeze-in Axinos Decaying into Photons
• The Morphology of Exciting Dark Matter and the Galactic 511 keV Signal
• Discovery Potential of Selectron or Smuon as the Lightest Supersymmetric Particle at the LHC
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• Experimental status of particle and astroparticle searches for supersymmetry
• Lepton flavor violation beyond the MSSM
• WIMP Dark Matter in the U$\mu \nu$SSM
• Fenomenología de modelos supersimétricos: partículas y materia oscura
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