Solar Neutrinos: Probing the Quasi-isothermal Solar Core Produced by Supersymmetric Dark Matter Particles

Ilídio P. Lopes and Joseph Silk
Phys. Rev. Lett. 88, 151303 – Published 2 April 2002
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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 1034cm3/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.

  • Received 11 September 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.151303

©2002 American Physical Society

Authors & Affiliations

Ilídio P. Lopes* and Joseph Silk

  • Department of Physics, Nuclear and Astrophysics Laboratory, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom

  • *Instituto Superior Técnico, Centro Multidisciplinar de Astrofísica, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal.Electronic address: lopes@astro.ox.ac.uk
  • Electronic address: silk@astro.ox.ac.uk

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Vol. 88, Iss. 15 — 15 April 2002

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