Common Origin of 3.55 keV X-Ray Line and Galactic Center Gamma Ray Excess in a Radiative Neutrino Mass Model

Abstract

We attempt to simultaneously explain the recently observed 3.55 keV X-ray line in the analysis of XMM-Newton telescope data and the galactic center gamma ray excess observed by the Fermi gamma ray space telescope within an abelian gauge extension of standard model. We consider a two component dark matter scenario with tree level mass difference 3.55 keV such that the heavier one can decay into the lighter one and a photon with energy 3.55 keV. The lighter dark matter candidate is protected from decaying into the standard model particles by a remnant $Z_2$ symmetry into which the abelian gauge symmetry gets spontaneously broken. If the mass of the dark matter particle is chosen to be within $31-40$ GeV, then this model can also explain the galactic center gamma ray excess if the dark matter annihilation into $b\bar{b}$ pairs has a cross section of $⟨\sigma v⟩\simeq (1.4-2.0)\times 10^{-26}{\text{cm}}^3/\text{s}$. We constrain the model from the requirement of producing correct dark matter relic density, 3.55 keV X-ray line flux and galactic center gamma ray excess. We also impose the bounds coming from dark matter direct detection experiments as well as collider limits on additional gauge boson mass and gauge coupling. We also briefly discuss how this model can give rise to sub-eV neutrino masses at tree level as well as one-loop level while keeping the dark matter mass at few tens of GeV. We also constrain the model parameters from the requirement of keeping the one-loop mass difference between two dark matter particles below a keV. We find that the constraints from light neutrino mass and keV mass splitting between two dark matter components show more preference for opposite $CP$ eigenvalues of the two fermion singlet dark matter candidates in the model

27 pages, 6 figures, to appear in Phys. Rev. D

References in corpus (42)

• Simplified Dark Matter Models for the Galactic Center Gamma-Ray Excess
• The Poker Face of the Majoron Dark Matter Model: LUX to keV Line
• Resonantly-Produced 7 keV Sterile Neutrino Dark Matter Models and the Properties of Milky Way Satellites
• Fermion Triplet Dark Matter and Radiative Neutrino Mass
• The 7 keV axion dark matter and the X-ray line signal
• A 3.55 keV Photon Line and its Morphology from a 3.55 keV ALP Line
• SIMPle Dark Matter: Self-Interactions and keV Lines
• Self-Scattering for Dark Matter with an Excited State
• A Dark Matter Progenitor: Light Vector Boson Decay into (Sterile) Neutrinos
• X-ray line signal from decaying axino warm dark matter
• Generating X-ray lines from annihilating dark matter
• X-ray Lines from Dark Matter: The Good, The Bad, and The Unlikely
• 3.5 keV X-rays as the "21 cm line" of dark atoms, and a link to light sterile neutrinos
• Relic Gravity Waves and 7 keV Dark Matter from a GeV scale inflaton
• 3.55 keV photon lines from axion to photon conversion in the Milky Way and M31
• Nonthermal Two Component Dark Matter Model for Fermi-LAT $\gamma$-ray excess and 3.55 keV X-ray Line
• 7 keV Scalar Dark Matter and the Anomalous Galactic X-ray Spectrum
• Anomaly-free flavor models for Nambu-Goldstone bosons and the 3.5 keV X-ray line signal
• keV Photon Emission from Light Nonthermal Dark Matter
• X-ray line in Radiative Neutrino Model with Global $U(1)$ Symmetry
• A Dynamical Framework for KeV Dirac Neutrino Warm Dark Matter
• 3.55 keV X-ray Line Signal from Excited Dark Matter in Radiative Neutrino Model
• A 3.55 keV line from $\text{DM}\to a\to \gamma$: predictions for cool-core and non-cool-core clusters
• The 3.5 keV X-ray line signal from decaying moduli with low cutoff scale
• Cluster X-ray line at $3.5\mathrm{keV}$ from axion-like dark matter
• Consistency of dark matter interpretations of the 3.5 keV X-ray line
• 7 keV Sterile neutrino dark matter in $U(1{)}_R-$ lepton number model
• Decaying Vector Dark Matter as an Explanation for the 3.5 keV Line from Galaxy Clusters
• Nonabelian dark matter models for 3.5 keV X-rays
• 3.5-keV X-ray line from nearly-degenerate WIMP dark matter decays
• Natural $X$-ray Lines from the Low Scale Supersymmetry Breaking
• X-ray Line from the Dark Transition Electric Dipole
• Scalar Dark Matter with Type II Seesaw
• Effective field theory and keV lines from dark matter
• 3.55 keV line in Minimal Decaying Dark Matter scenarios
• Displaced Vertices from X-ray Lines
• Non-abelian Dark Matter Solutions for Galactic Gamma-ray Excess and Perseus 3.5 keV X-ray Line
• 3.5 keV X-ray line and R-Parity Conserving Supersymmetry
• A 3.55 keV Line from Exciting Dark Matter without a Hidden Sector
• ${\nu }_R$ dark matter-philic Higgs for 3.5 keV X-ray signal
• 3.5 keV Galactic Emission Line as a Signal from the Hidden Sector
• Supersymmetric Higgs-portal and X-ray lines

Cited by in corpus (17)

• Towards a realistic astrophysical interpretation of the gamma-ray Galactic center excess
• Two component WIMP-FImP dark matter model with singlet fermion, scalar and pseudo scalar
• New U(1) Gauge Model of Radiative Lepton Masses with Sterile Neutrino and Dark Matter
• Minimal Two-component Scalar Doublet Dark Matter with Radiative Neutrino Mass
• Type III Seesaw for Neutrino Masses in $U(1{)}_{B-L}$ Model with Multi-component Dark Matter
• Fermionic dark matter via UV and IR freeze-in and its possible X-ray signature
• Galactic Gamma Ray Excess and Dark Matter Phenomenology in a $U(1{)}_{B-L}$ Model
• Primordial black holes and scotogenic dark matter
• keV Neutrino Dark Matter in a Fast Expanding Universe
• Scotogenic dark matter and single-zero textures of the neutrino mass matrix
• One-loop radiative seesaw dark matter and neutrinoless double beta decay with two zero flavor neutrino mass texture
• Common Origin of Non-zero ${\theta }_{13}$ and Dark Matter in an $S_4$ Flavour Symmetric Model with Inverse Seesaw
• Parametrization of the Yukawa matrix in the scotogenic model and single-zero textures of the neutrino mass matrix
• Common Origin of $3.55$ keV X-ray line and Gauge Coupling Unification with Left-Right Dark Matter
• Dwarf Galaxy $\gamma$-excess and 3.55 keV X-ray Line In A Nonthermal Dark Matter Model
• Constraining scotogenic dark matter and primordial black holes using gravitational waves
• Primordial black holes and lepton flavor violation with scotogenic dark matter