High energy neutrinos from the Sun and cold dark matter

Details High energy neutrinos from the Sun and cold dark matter High energy neutrinos from the Sun and cold dark matter

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986stin...8718500s&link_type=abstract

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Physics

Galactic Structure, Halos, Matter (Physics), Neutrinos, Solar Flux, Sun, Background Radiation, Energetic Particles, Mass, Solar Activity, Solar Radiation, Supersymmetry

Scientific paper

The possibility of a flux of high energy neutrinos (100 MeV less than or equal to Enu less than or equal to 10GeV) from the Sun due to the annihilation within of particles which make up the galactic halo is considered. Specifically, if the halo consists of heavy neutrinos or stable supersymmetric particles with mass greater than or equal to 6GeV, halo particles will be trapped in the Sun and annihilate to produce a potentially observable high energy neutrino flux. Detailed estimates of this flux are provided for a variety of candidate halo particles: photinos, higgsinos, scalar neutrinos, heavy Dirac neutrinos, and heavy Majorana neutrinos. All of these can (for appropriate ranges of parameters) produce fluxes whose absolute value is at least comparable to atmospheric background. How the solar fluxes could be distinguished from the background is briefly discussed. The effect of trapped halo particles on the solar neutrino problem is also discussed.

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