Light Dark Matter Annihilations into Two Photons

Abstract

We compute the pair annihilation cross section of light (spin-0) dark matter particles into two photons and discuss the detectability of the monochromatic line associated with these annihilations.

7 pages

References in corpus (25)

• Dark Matter Substructure in Galactic Halos
• Scalar Dark Matter candidates
• The cored distribution of dark matter in spiral galaxies
• MeV Dark Matter: Has It Been Detected?
• Sagittarius: The Nearest Dwarf Galaxy
• Early SPI/INTEGRAL measurements of galactic 511 keV line emission from positron annihilation
• The radial velocity dispersion profile of the Galactic halo: Constraining the density profile of the dark halo of the Milky Way
• The MACHO project: Microlensing Optical Depth towards the Galactic Bulge from Difference Image Analysis
• Positron annihilation spectrum from the Galactic Center region observed by SPI/INTEGRAL
• Cuspy Dark-Matter Haloes and the Galaxy
• Can annihilating Dark Matter be lighter than a few GeVs?
• Gamma-ray continuum emission from the inner Galactic region as observed with INTEGRAL/SPI
• The rotation curves of dwarf galaxies: a problem for Cold Dark Matter?
• MeV-mass dark matter and primordial nucleosynthesis
• Microlensing Optical Depth towards the Galactic Bulge Using Clump Giants from the MACHO Survey
• Possible Evidence For Axino Dark Matter In The Galactic Bulge
• Unstable Relics as a Source of Galactic Positrons
• Constraints on Light Dark Matter From Core-Collapse Supernovae
• Possible Evidence for MeV Dark Matter In Dwarf Spheroidals
• Supernovae and Positron Annihilation
• More evidence in favour of Light Dark Matter particles?
• Implications of a new light gauge boson for neutrino physics
• 511 keV Gamma Ray from Moduli Decay in the Galactic Bulge
• Unification of Dark Energy and Dark Matter
• 511 keV line and diffuse gamma rays from moduli

Cited by in corpus (16)

• Dark Matter Candidates: A Ten-Point Test
• Constraining DM properties with SPI
• Higgs and Z' Phenomenology in B-L extension of the Standard Model at LHC
• Sterile neutrino dark matter in $B-L$ extension of the standard model and galactic 511 keV line
• Search with EGRET for a Gamma Ray Line from the Galactic Center
• Sharp Gamma-ray Spectral Features from Scalar Dark Matter Annihilations
• Dispersive Light Propagation at Cosmological Distances: Matter Effects
• Bremsstrahlung and Gamma Ray Lines in 3 Scenarios of Dark Matter Annihilation
• MeV Right-handed Neutrinos and Dark Matter
• Annihilation of singlet fermionic dark matter into two photons
• Dark Matter: the Connection with Gamma-Ray Astrophysics
• Two-photon annihilation of singlet cold dark matters due to noncommutative space-time
• Freeze-in production of sterile neutrino dark matter in a gauged U$(1{)}^{\prime }$ model with inverse seesaw
• Asymmetric dark matter and effective number of neutrinos
• Signature of Sub GeV Dark Matter particles at LHC and TEVATRON
• An Experiment to Search for Light Dark Matter in Low-Energy ep Scattering