The anomaly mediated supersymmetry breaking (AMSB) scenario is a viable scheme to provide cold dark matter. We entertain the possibility that the dark halo of the Milky Way is made of neutralinos in AMSB theories and compute the induced rates of exotic cosmic rays. We find regions in the model parameter space excluded by available antiproton and positron measurements. Upcoming experiments will set even stronger constraints or find evidence for dark matter; in particular, we prove that if at least 10% of the gamma-ray flux detected by the EGRET telescope towards the Galactic center is due to AMSB neutralino annihilations, the associated monochromatic gamma-ray flux will be detected by the next generation of gamma-ray telescopes.

Indirect searches for neutralino dark matter candidates in anomaly-mediated supersymmetry breaking scenarios

Ullio, Piero
2002-01-01

Abstract

The anomaly mediated supersymmetry breaking (AMSB) scenario is a viable scheme to provide cold dark matter. We entertain the possibility that the dark halo of the Milky Way is made of neutralinos in AMSB theories and compute the induced rates of exotic cosmic rays. We find regions in the model parameter space excluded by available antiproton and positron measurements. Upcoming experiments will set even stronger constraints or find evidence for dark matter; in particular, we prove that if at least 10% of the gamma-ray flux detected by the EGRET telescope towards the Galactic center is due to AMSB neutralino annihilations, the associated monochromatic gamma-ray flux will be detected by the next generation of gamma-ray telescopes.
2002
Proceedings of the 7th International Workshop on Topics in Astroparticle and Underground Physics
110
82
84
Ullio, Piero
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/15369
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