Resonant conversions of extremely high energy neutrinos in dark matter halos

Abstract

We study the effect of adiabatically resonant conversion in galactic halos of neutrinos at the highest energies ($\sim 10^{20}$ - $10^{22}$ eV), when the $\nu$ source is in the center of a galaxy. Using the standard neutrino properties and the standard cosmological scenario for the hot dark part of matter, we find that interesting conversions may take place just for neutrino parameters relevant to the solar and atmospheric neutrino problem. The effect is due to the large enhancement in the $\nu$ density in galactic halos and to the form of the effective matter potential both below and above the pole of the $Z$ resonance.

8 pages, revtex, some comments and references added, to appear in Phys. Rev. D

References in corpus (4)

• Evidence for oscillation of atmospheric neutrinos
• Extracting Primordial Density Fluctuations
• Comparing and contrasting the ${\nu }_{\mu }\to {\nu }_{\tau }$ and ${\nu }_{\mu }\to {\nu }_s$ solutions to the atmospheric neutrino problem with SuperKamiokande data
• Update on Atmospheric Neutrinos

Cited by in corpus (5)

• Origin and Propagation of Extremely High Energy Cosmic Rays
• Neutrino propagation in the galactic dark matter halo
• The minimum width condition for neutrino conversion in matter
• Solar Neutrinos as a Probe of Dark Matter-Neutrino Interactions
• Nonstandard neutrino properties and the high-energy cosmic neutrino flux