Secluded singlet fermionic dark matter driven by the Fermi gamma-ray excess

Abstract

We examine the possibility that the dark matter (DM) interpretation of the GeV scale Fermi gamma-ray excess at the Galactic Center can be realized in a specific framework - secluded singlet fermionic dark matter model with small mixing between the dark and Standard Model sector. Within this framework it is shown that the DM annihilation into bottom-quark pair, Higgs pair, and new scalar pair can give good fits to the Fermi gamma-ray data. Moreover unavoidable constraints from the antiproton ratio by the PAMELA and AMS-02, the gamma-ray emission from the dwarf spheroidal galaxies by the Fermi-LAT, and the Higgs measurements by the LHC are also considered. Then we found our best-fit parameters for the Fermi gamma-ray excess without conflicting other experimental and cosmological constraints if uncertainties on the DM density profile of the Milky Way Galaxy are taken into account. Successfully surviving parameters are benchmark points for future study on the collider signals.

arXiv comment20 pages, 8 figures, 1 table

References in corpus (60)

• A Universal Density Profile from Hierarchical Clustering
• The Structure of Cold Dark Matter Halos
• Secluded WIMP Dark Matter
• Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi-LAT Data
• Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope
• PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy
• On The Origin Of The Gamma Rays From The Galactic Center
• The Characterization of the Gamma-Ray Signal from the Central Milky Way: A Compelling Case for Annihilating Dark Matter
• Detection of a Gamma-Ray Source in the Galactic Center Consistent with Extended Emission from Dark Matter Annihilation and Concentrated Astrophysical Emission
• Background model systematics for the Fermi GeV excess
• micrOMEGAs4.1: two dark matter candidates
• Dark Matter and Pulsar Model Constraints from Galactic Center Fermi-LAT Gamma Ray Observations
• Fermi-LAT Observations of High-Energy Gamma-Ray Emission Toward the Galactic Center
• Astrophysical and Dark Matter Interpretations of Extended Gamma-Ray Emission from the Galactic Center
• Strong support for the millisecond pulsar origin of the Galactic center GeV excess
• A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics
• Evidence for Unresolved Gamma-Ray Point Sources in the Inner Galaxy
• Precision Measurement of Cosmic-Ray Antiproton Spectrum
• A Renormalizable Model for the Galactic Center Gamma Ray Excess from Dark Matter Annihilation
• Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV
• Possible Evidence For Dark Matter Annihilation In The Inner Milky Way From The Fermi Gamma Ray Space Telescope
• The Consistency of Fermi-LAT Observations of the Galactic Center with a Millisecond Pulsar Population in the Central Stellar Cluster
• The Cosmic-Ray antiproton flux between 3 and 49 GeV
• Measurements of Cosmic-ray Low-energy Antiproton and Proton Spectra in a Transient Period of the Solar Field Reversal
• LanHEP - a package for the automatic generation of Feynman rules in field theory. Version 3.0
• Hidden On-Shell Mediators for the Galactic Center Gamma-Ray Excess
• Singlet fermionic dark matter
• WIMPs at the Galactic Center
• The minimal model of fermionic dark matter
• The Effective Hooperon
• On the connection of Gamma-rays, Dark Matter and Higgs searches at LHC
• A weighty interpretation of the Galactic Centre excess
• Hidden Sector Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Multi-Step Cascade Annihilations of Dark Matter and the Galactic Center Excess
• Millisecond pulsar interpretation of the Galactic center gamma-ray excess
• Fermionic dark matter with pseudo-scalar Yukawa interaction
• Fitting the Fermi-LAT GeV excess: On the importance of including the propagation of electrons from dark matter
• A simplified 2HDM with a scalar dark matter and the galactic center gamma-ray excess
• The Fermionic Dark Matter Higgs Portal: an effective field theory approach
• A Possible Explanation of Low Energy $\gamma$-ray Excess from Galactic Centre and Fermi Bubble by a Dark Matter Model with Two Real Scalars
• Gamma ray emission in Fermi bubbles and Higgs portal dark matter
• LanHEP - a package for automatic generation of Feynman rules from the Lagrangian. Updated version 3.1
• Singlet Fermionic Dark Matter explains DAMA signal
• Class of Higgs-portal Dark Matter models in the light of gamma-ray excess from Galactic center
• SUSY explanation of the Fermi Galactic Center Excess and its test at LHC Run-II
• Fits to the Fermi-LAT GeV excess with RH sneutrino dark matter: implications for direct and indirect dark matter searches and the LHC
• Multimediator models for the galactic center gamma ray excess
• Bounds on dark matter interpretation of Fermi-LAT GeV excess
• Galactic center GeV gamma-ray excess from dark matter with gauged lepton numbers
• Two-portal Dark Matter
• Secluded WIMPs, QED with massive photons, and the galactic center gamma-ray excess
• Light dark matter for Fermi-LAT and CDMS observations
• Light neutralino dark matter with a very light Higgs for CoGeNT and DAMA/LIBRA data
• Confronting Galactic center and dwarf spheroidal gamma-ray observations with cascade annihilation models
• Dark Higgs Channel for FERMI GeV $\gamma$-ray Excess
• Two Emission Mechanisms in the Fermi Bubbles: A Possible Signal of Annihilating Dark Matter
• On-Shell Mediators and Top-Charm Dark Matter Models for the Fermi-LAT Galactic Center Excess
• Energy peak: back to the Galactic Center GeV gamma-ray excess
• Singlet fermionic dark matter as a natural higgs portal model
• Light neutralino dark matter in light Higgs scenario related with the CoGeNT and DAMA/LIBRA results

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• Exploring Spin-3/2 Dark Matter with Effective Higgs Couplings
• Updated Collider and Direct Detection Constraints on Dark Matter Models for the Galactic Center Gamma-Ray Excess
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• Fermionic Dark Matter through a Light Pseudoscalar Portal: Hints from the DAMA Results
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• Thermodynamic Evolution of Secluded Vector Dark Matter: Conventional WIMPs and Nonconventional WIMPs
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• Prospecting bipartite Dark Matter through Gravitational Waves
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• Singlet fermionic dark matter with Veltman conditions
• Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS experiment
• Search for Scalar Dark Matter via Pseudoscalar Portal Interactions: In Light of the Galactic Center Gamma-Ray Excess
• Interpretations of galactic center gamma-ray excess confronting the PandaX-II constraints on dark matter-neutron spin-dependent scatterings in the NMSSM
• Collider probes of singlet fermionic dark matter scenarios for the Fermi gamma-ray excess
• Present and Future constraints on Secluded Dark Matter in the Galactic Halo with TeV Gamma-ray Observatories
• A Potentially Detectable Gamma-Ray Line in the Fermi Galactic Center Excess -- In Light of One-Step Cascade Annihilations of Secluded (Vector) Dark Matter via the Higgs Portal
• Dark Matter phenomenology : from simplified WIMP models to refined alternative solutions
• Extended Higgs-portal dark matter and the Fermi-LAT Galactic Center Excess
• Dark matter properties implied by gamma ray interstellar emission models