New Interpretation of the Recent Result of AMS-02 and Multi-component Decaying Dark Matters with non-Abelian Discrete Flavor Symmetry

Abstract

Recently the AMS-02 experiment has released the data of positron fraction with much small statistical error. Because of the small error, it is no longer easy to fit the data with a single dark matter for a fixed diffusion model and dark matter profile. In this paper, we propose a new interpretation of the data that it originates from decay of two dark matter. This interpretation gives a rough threshold of the lighter DM component. When DM decays into leptons, the positron fraction in the cosmic ray depends on the flavor of the final states, and this is fixed by imposing non-Abelian discrete symmetry in our model. By assuming two gauge-singlet fermionic decaying DM particles, we show that a model with non-Abelian discrete flavor symmetry, e.g. $T_{13}$, can give a much better fitting to the AMS-02 data compared with single dark matter scenario. Few dimension six operators of universal leptonic decay of DM particles are allowed in our model since its decay operators are constrained by the $T_{13}$ symmetry. We also show that the lepton masses and mixings are consistent with current experimental data, due to the flavor symmetry.

11 pages, 1 figure, 2 tables; version accepted for publication in European Physical Journal C

References in corpus (20)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• Observation of electron-antineutrino disappearance at Daya Bay
• Observation of an anomalous positron abundance in the cosmic radiation
• Global status of neutrino oscillation parameters after Neutrino-2012
• A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation
• Heavy Majorana Neutrinos in the Effective Lagrangian Description: Application to Hadron Colliders
• Probing the Pulsar Origin of the Anomalous Positron Fraction with AMS-02 and Atmospheric Cherenkov Telescopes
• Dark Matter and Pulsar Origins of the Rising Cosmic Ray Positron Fraction in Light of New Data From AMS
• On the origin of neutrino flavour symmetry
• Constraints on dark matter annihilation from AMS-02 results
• Pulsar interpretation for the AMS-02 result
• Implications of the AMS-02 positron fraction in cosmic rays
• Tribimaximal Mixing From Small Groups
• Implications of the first AMS-02 measurement for dark matter annihilation and decay
• T(13) Flavor Symmetry and Decaying Dark Matter
• Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
• Interpretation of AMS-02 Results: Correlations among Dark Matter Signals
• Recent Result of the AMS-02 Experiment and Decaying Gravitino Dark Matter in Gauge Mediation

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