ATIC/PAMELA anomaly from fermionic decaying Dark Matter

Abstract

We demonstrate that an economical two Higgs doublet model can explain the electron and positron excesses in the recent ATIC and PAMELA experiments by the three body decays of the dark matter (DM) fermions without requiring the fine turning of the couplings and degeneracy of masses. We also show that the mass and lifetime of the decaying DM particle may not be fixed to be around 1 TeV and 10^{26} sec, respectively. Moreover, we note that this model includes a stable dark matter candidate as well.

8 pages, 4 figures; references added, typos corrected. The version to appear in PLB

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Cited by in corpus (18)

• $e^{\pm }$ Excesses in the Cosmic Ray Spectrum and Possible Interpretations
• Decaying into the Hidden Sector
• Sneutrino Dark Matter: Symmetry Protection and Cosmic Ray Anomalies
• Imprint of Multi-component Dark Matter on AMS-02
• Dark matter in the supersymmetric radiative seesaw model with an anomalous U(1) symmetry
• Revisiting Multi-Component Dark Matter with New AMS-02 Data
• Exploration of decaying dark matter in a left-right symmetric model
• Decaying neutralino dark matter in anomalous $U(1{)}_H$ models
• Signals of dark matter in a supersymmetric two dark matter model
• Decaying Hidden Dark Matter in Warped Compactification
• Decaying Dark Matter from Dark Instantons
• Inert Dark Matter in Type-II Seesaw
• Clumpiness enhancement of charged cosmic rays from dark matter annihilation with Sommerfeld effect
• Resolving Fermi, PAMELA and ATIC anomalies in split supersymmetry without R-parity
• Neutrino Masses, Leptogenesis and Decaying Dark Matter
• Cosmic e^\pm, \bar p, γand neutrino rays in leptocentric dark matter models
• Sommerfeld Enhancement from Unparticle Exchange for Dark Matter Annihilation
• Multicomponent Dark Matter in the Light of CALET and DAMPE