High energy neutrinos from the sun and cold dark matter
The possibility of a flux of high energy neutrinos (100 MeV less than or equal to E/sub nu/ 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. 42 refs., 3 figs.
- Research Organization:
- California Univ., Santa Barbara (USA). Dept. of Physics; Minnesota Univ., Minneapolis (USA). School of Physics and Astronomy; California Univ., Berkeley (USA). Dept. of Astronomy
- DOE Contract Number:
- AC02-83ER40105
- OSTI ID:
- 5314846
- Report Number(s):
- DOE/ER/40105-553; ON: DE86014761
- Country of Publication:
- United States
- Language:
- English
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GENERAL PHYSICS
SOLAR NEUTRINOS
RADIATION FLUX
ANNIHILATION
CROSS SECTIONS
MASS
NONLUMINOUS MATTER
POSTULATED PARTICLES
SOLAR RADIATION
SUPERSYMMETRY
THEORETICAL DATA
BASIC INTERACTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
INFORMATION
INTERACTIONS
LEPTONS
MASSLESS PARTICLES
NEUTRINOS
NUMERICAL DATA
RADIATIONS
SOLAR PARTICLES
STELLAR RADIATION
SYMMETRY
640104* - Astrophysics & Cosmology- Solar Phenomena