Weak Corrections are Relevant for Dark Matter Indirect Detection
arXiv:1009.0224 · doi:10.1088/1475-7516/2011/03/019
Abstract
The computation of the energy spectra of Standard Model particles originated from the annihilation/decay of dark matter particles is of primary importance in indirect searches of dark matter. We compute how the inclusion of electroweak corrections significantly alter such spectra when the mass M of dark matter particles is larger than the electroweak scale: soft electroweak gauge bosons are copiously radiated opening new channels in the final states which otherwise would be forbidden if such corrections are neglected. All stable particles are therefore present in the final spectrum, independently of the primary channel of dark matter annihilation/decay. Such corrections are model independent.
38 pages (half are technical appendices), 7 figures
References in corpus (13)
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- A Theory of Dark Matter
- Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
- Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
- New Gamma-Ray Contributions to Supersymmetric Dark Matter Annihilation
- Minimal Dark Matter predictions for galactic positrons, anti-protons, photons
- Electroweak corrections to hadronic production of W bosons at large transverse momenta
- Electroweak Corrections in High Energy Processes using Effective Field Theory
- Electroweak Corrections using Effective Field Theory: Applications to the LHC
- Model-independent dark matter annihilation bound from the diffuse gamma ray flux
- Electroweak Bremsstrahlung in Dark Matter Annihilation
- Two-loop electroweak next-to-leading logarithmic corrections to massless fermionic processes
- Toward a Minimum Branching Fraction for Dark Matter Annihilation into Electromagnetic Final States