High Energy Cosmic Rays from the Decay of Gravitino Dark Matter

Abstract

We study gamma ray and positron in high energy cosmic ray from the decay of the gravitino dark matter in the framework of supersymmetric model with R-parity violation. Even though R-parity is violated, the lifetime of the gravitino, which is assumed to be the lightest superparticle, can be longer than the present age of the universe if R-parity violating interactions are weak enough. In such a case, gravitino can be dark matter of the universe and its decay produces high energy cosmic rays. We calculate the fluxes of gamma ray and positron from the decay of the gravitino dark matter and discuss implications of such a scenario to present and future observations. In particular, we show that excesses of the fluxes of gamma ray and positron observed by EGRET and HEAT experiments, respectively, can be simultaneously explained as the cosmic rays from the decay of the gravitino dark matter.

arXiv comment28 pages, 9 figures

References in corpus (52)

• A Universal Density Profile from Hierarchical Clustering
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Supersymmetric Dark Matter
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Out Of This World Supersymmetry Breaking
• Gaugino Mass without Singlets
• Propagation of cosmic-ray nucleons in the Galaxy
• Leptogenesis for Pedestrians
• Towards a complete theory of thermal leptogenesis in the SM and MSSM
• Production and propagation of cosmic-ray positrons and electrons
• EGRET Observations of the Extragalactic Gamma Ray Emission
• Diffuse continuum gamma rays from the Galaxy
• Measurements of the Cosmic-Ray Positron Fraction From 1 to 50 GeV
• Big-Bang Nucleosynthesis and Gravitino
• Positron Propagation and Fluxes from Neutralino Annihilation in the Halo
• A new determination of the extragalactic diffuse gamma-ray background from EGRET data
• Neutrino Masses and Mixings from Supersymmetry with Bilinear R--Parity Violation: A Theory for Solar and Atmospheric Neutrino Oscillations
• Gravitino Dark Matter in R-Parity Breaking Vacua
• Gravitino Dark Matter without R-parity
• Sphaleron Erasure of Primordial Baryogenesis
• Moduli-Induced Gravitino Problem
• Gamma-Ray Background from Structure Formation in the Intergalactic Medium
• Gravitino Production from Heavy Moduli Decay and Cosmological Moduli Problem Revived
• Clumpy Neutralino Dark Matter
• Moduli Decays and Gravitinos
• Gravitino Overproduction in Inflaton Decay
• Cosmic Ray Protons and Magnetic Fields in Clusters of Galaxies and their Cosmological Consequences
• Inflaton Decay in Supergravity
• The cosmic ray positron excess and neutralino dark matter
• The Gravitino-Overproduction Problem in Inflationary Universe
• Gamma Ray Spectrum from Gravitino Dark Matter Decay
• Heavy Wino-like Neutralino Dark Matter Annihilation into Antiparticles
• Inter-galactic Shock Acceleration and the Cosmic Gamma-ray Background
• Gravitinos from Heavy Scalar Decay
• Moduli/Inflaton Mixing with Supersymmetry Breaking Field
• Some Implications of a Supersymmetric Model with R-Parity Breaking Bilinear Interactions
• Local Flux of Low-Energy Antiprotons from Evaporating Primordial Black Holes
• Searching for Dark Matter with Future Cosmic Positron Experiments
• Gamma-Rays from Decaying Dark Matter
• Antimatter Signatures of Gravitino Dark Matter Decay
• Anomaly-Induced Inflaton Decay and Gravitino-Overproduction Problem
• Kaluza-Klein Dark Matter and the Positron Excess
• Supersymmetry and the positron excess in cosmic rays
• The Role of Antimatter Searches in the Hunt for Supersymmetric Dark Matter
• Cosmic Positron Signature from Dark Matter in the Littlest Higgs Model with T-parity
• Can Dark Matter Annihilation Dominate the Extragalactic Gamma-Ray Background?
• Pattern of Neutrino Oscillations in Supersymmetry with Bilinear R-parity Violation
• Neutrino masses and mixings in the MSSM with soft bilinear $R_p$ violation
• Spectrum of Background X-rays from Moduli Dark Matter
• Bi-large neutrino mixing from bilinear R-parity violation with non-universality
• Positron Fraction from Dark Matter Annihilation in the CMSSM

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