Search for Relic Neutralinos with Milagro
Abstract
The neutralino, the lightest stable supersymmetric particle, is a strong theoretical candidate for the missing astronomical "dark matter". The Minimal supersymmetric extension of the Standard model predicts that the gamma rays emerging from one of the neutralino annihilation modes will give a distinct mono chromatic signal in the energy range between 100GeV and 10TeV, depending on the neutralino mass. An additional "continuum" spectrum signal of photons will be produced by the decay of secondaries produced in the non-photonic annihilation modes. Milagro is an air shower array which uses the water Cherenkov technique and is capable of detecting TeV gamma rays from the direction of the Sun with an angular resolution of less than a degree. In this report we present preliminary results of a search for near-solar neutralino to photon annihilation with the Milagro gamma-ray observatory.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- July 2003
- Bibcode:
- 2003ICRC....3.1661F