New Fermi-LAT Dark Matter Result

The Fermi-LAT collaboration has a new dark matter result. This one looks for signs of WIMP annihilation in the isotropic gamma ray background. They consider various WIMP annihilation to various channels with gamma rays produced from these decay products. This gives a broad spectrum of gamma energies instead of a simple peak if WIMPs were to annihilate directly to photons (that process would also need to be suppressed since dark matter shouldn’t couple directly to photons).