Kamakshya Prasad Modak, Debasish Majumdar
We consider the lightest supersymmetric particle (LSP), neutralino in minimal anomaly mediated supersymmetry breaking model (mAMSB) to be a possible candidate for weakly interacting massive particles (WIMP) or cold dark matter and investigate its direct and indirect detections. The supersymmetric parametric space for such a model is constrained by the WMAP results for relic densities. The spin independent and spin dependent scattering cross sections for dark matter off nucleon are thus constrained from the WMAP results. They are found to be within the allowed regions of different ongoing direct detection experiments. The annihilation of such dark matter candidates at the galactic centre produce different standard model particles such as gamma rays, neutrinos etc. In this work, we investigate the possible fluxes of such particles from galactic centre. The neutrino flux from the galactic centre and at different locations away from the galactic centre produced by WIMP annihilation in this model are also obtained for four types of dark matter halo profile. The possibility of detection of such neutrinos from galactic centre at the ANTARES under sea neutrino detector is also investigated. We have studied signals from dark matter annihilations from different angles of observations for different spherically symmetric dark matter halo distribution models in the galaxy. We have compared our gamma ray flux results for four different halo models with the HESS experimental data.
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http://arxiv.org/abs/1205.1996
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