Solar neutrinos: probing the quasi-isothermal solar core produced by supersymmetric dark matter particles |
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Authors: | Lopes Ilídio P Silk Joseph |
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Institution: | Department of Physics, Nuclear and Astrophysics Laboratory, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom. lopes@astro.ox.ac.uk |
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Abstract: | SNO measurements strongly constrain the central temperature of the Sun, to within a precision of much less than 1%. This result can be used to probe the parameter space of supersymmetric dark matter. In this first analysis we find a lower limit for the weakly interacting massive particle (WIMP) mass of 60 GeV. Furthermore, in the event that WIMPs create a quasi-isothermal core, they will produce a peculiar distribution of the solar neutrino fluxes measured on Earth. Typically, a WIMP with a mass of 100 GeV and annihilation cross section of 10(-34) cm(3)/sec will decrease the neutrino predictions, by up to 4% for the Cl, by 3% for the heavy water, and by 1% for the Ga detectors. |
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