Decaying Dark Matter Baryons in a Composite Messenger Model

Abstract

A baryonic bound state with a mass of O(100) TeV, which is composed of strongly interacting messenger quarks in the low scale gauge mediation, can naturally be the cold dark matter. Interestingly, we find that such a baryonic dark matter is generically metastable, and the decay of this dark matter can naturally explain the anomalous positron flux recently observed by the PAMELA collaboration.

10 pages, 2 figures. v2: minor changes, note added

References in corpus (6)

• PYTHIA 6.4 Physics and Manual
• Observation of an anomalous positron abundance in the cosmic radiation
• Gamma rays and positrons from a decaying hidden gauge boson
• High-energy electron observations by PPB-BETS flight in Antarctica
• Antimatter Signatures of Gravitino Dark Matter Decay
• Composite Messenger Baryon as a Cold Dark Matter

Cited by in corpus (50)

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• Composite strongly interacting dark matter
• Decaying Dark Matter and the PAMELA Anomaly
• Constraining Very Heavy Dark Matter Using Diffuse Backgrounds of Neutrinos and Cascaded Gamma Rays
• Indirect Searches for Decaying Dark Matter
• Phenomenology of $U(1{)}_{L_{\mu }-L_{\tau }}$ charged dark matter at PAMELA/FERMI and colliders
• $e^{\pm }$ Excesses in the Cosmic Ray Spectrum and Possible Interpretations
• Cosmic Signals from the Hidden Sector
• Discriminating different scenarios to account for the cosmic $e^{\pm }$ excess by synchrotron and inverse Compton radiation
• Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI
• White Dwarf Pulsars as Possible Cosmic Ray Electron-Positron Factories
• Cosmic Ray Positron and Electron Excess from Hidden-Fermion Dark Matter Decays
• Precise WIMP Dark Matter Abundance and Standard Model Thermodynamics
• Radio and gamma-ray constraints on dark matter annihilation in the Galactic center
• R-violating Decay of Wino Dark Matter and electron/positron Excesses in the PAMELA/Fermi Experiments
• Secondary radiation from the Pamela/ATIC excess and relevance for Fermi
• Fermi Gamma-ray Space Telescope: High-Energy Results from the First Year
• Synchrotron Radiation from the Galactic Center in Decaying Dark Matter Scenario
• Annihilation vs. Decay: Constraining dark matter properties from a gamma-ray detection
• Cosmic Gamma-ray from Inverse Compton Process in Unstable Dark Matter Scenario
• Sneutrino Dark Matter: Symmetry Protection and Cosmic Ray Anomalies
• Galactic Signatures of Decaying Dark Matter
• Imprint of Multi-component Dark Matter on AMS-02
• A Brief Review on Dark Matter Annihilation Explanation for $e^{\pm }$ Excesses in Cosmic Ray
• ATIC and PAMELA Results on Cosmic e^\pm Excesses and Neutrino Masses
• Type II Seesaw and the PAMELA/ATIC Signals
• Leptophilic fermion WIMP ~ Role of future lepton colliders
• Higgs Boson Mass in Low Scale Gauge Mediation Models
• Revisiting Multi-Component Dark Matter with New AMS-02 Data
• Low-Scale Gauge Mediation and Composite Messenger Dark Matter
• Simplified R-Symmetry Breaking and Low-Scale Gauge Mediation
• Decaying Dark Matter from Dark Instantons
• Unstable Gravitino Dark Matter - Prospects for Indirect and Direct Detection
• Decaying Dark Matter in Supersymmetric Model and Cosmic-Ray Observations
• Inert Dark Matter in Type-II Seesaw
• Clumpiness enhancement of charged cosmic rays from dark matter annihilation with Sommerfeld effect
• Cascade supersymmetry breaking and low-scale gauge mediation
• Dark Matter Model Selection and the ATIC/PPB-BETS anomaly
• Deep Correlation Between Cosmic-Ray Anomaly and Neutrino Masses
• A Conformal Gauge Mediation and Dark Matter with Only One Parameter
• Relaxing a constraint on the number of messengers in a low-scale gauge mediation
• Neutrino Masses, Leptogenesis and Decaying Dark Matter
• Extracting the size of the cosmic electron-positron anomaly
• Dark matter from dynamical SUSY breaking
• Lower limit on the gravitino mass in low-scale gauge mediation with $m_H\simeq 125$GeV
• Role of Future Lepton Colliders for Fermionic Z-portal Dark Matter
• Reexamine the dark matter scenario accounting for the positron excess in a new cosmic ray propagation model
• Possible spectral irregularities in the AMS-02 positron spectrum
• Multicomponent Dark Matter in the Light of CALET and DAMPE