Loop-induced dark matter direct detection signals from gamma-ray lines
arXiv:1207.3971 · doi:10.1088/1475-7516/2012/10/033
Abstract
Improved limits as well as tentative claims for dark matter annihilation into gamma-ray lines have been presented recently. We study the direct detection cross section induced from dark matter annihilation into two photons in a model-independent fashion, assuming no additional couplings between dark matter and nuclei. We find a striking non-standard recoil spectrum due to different destructively interfering contributions to the dark matter nucleus scattering cross section. While in the case of s-wave annihilation the current sensitivity of direct detection experiments is insufficient to compete with indirect detection searches, for p-wave annihilation the constraints from direct searches are comparable. This will allow to test dark matter scenarios with p-wave annihilation that predict a large di-photon annihilation cross section in the next generation of experiments.
19 pages, 5 figures. v2: new XENON100 results included, references added. v3: matches published version
References in corpus (12)
- A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
- Significant Gamma Lines from Inert Higgs Dark Matter
- Electromagnetic properties of dark matter: dipole moments and charge form factor
- Dark matter constraints from box-shaped gamma-ray features
- How Dark Are Majorana WIMPs? Signals from MiDM and Rayleigh Dark Matter
- Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
- Strong Evidence for Gamma-ray Line Emission from the Inner Galaxy
- Two Lines or Not Two Lines? That is the Question of Gamma Ray Spectra
- Direct Detection of Dark Matter Electromagnetic Dipole Moments
- A coherent understanding of low-energy nuclear recoils in liquid xenon
- Searching for the continuum spectrum photons correlated to the 130 GeV gamma-ray line
- Gamma-ray lines constraints in the NMSSM
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- LHC constraints on gauge boson couplings to dark matter
- Dark matter direct detection constraints from gauge bosons loops
- Galactic Center Radio Constraints on Gamma-Ray Lines from Dark Matter Annihilation
- Shining dark matter in Xenon1T
- Probing contact interactions with conversion
- Anapole dark matter annihilation into photons
- Searching for pseudo Nambu-Goldstone boson dark matter production in association with top quarks
- On the cosmology and terrestrial signals of sexaquark dark matter
- Thermal WIMPs and the Scale of New Physics: Global Fits of Dirac Dark Matter Effective Field Theories
- Exploring Four Fermion Contact Couplings of a Dark Fermion and an Electron at Hadron Colliders and Direct Detection Experiments
- Constraining Gluonic Contact Interaction of a Neutrino-philic Dark Fermion at Hadron Colliders and Direct Detection Experiments
- Dark Matter Search at Colliders and Neutrino Floor
- Two-photon exchange in leptophilic dark matter scenarios
- Photonic Freeze-In
- Chromo-Rayleigh Interactions of Dark Matter