Detecting Dark Matter annihilation lines with Fermi

Understand

Dark matter constitutes one of the most intriguing but so far unresolved issues in physics today.

• In many extensions of the Standard Model the existence of a stable Weakly Interacting Massive Particle (WIMP) is predicted.
• The WIMP is an excellent dark matter particle candidate and one of the most interesting scenarios include an annihilation of two WIMPs into two gamma-rays.
• If the WIMPs are assumed to be non-relativistic, the resulting photons will both have an energy equal to the mass of the WIMP and manifest themselves as a monochromatic spectral line in the energy spectrum.