Tau neutrinos from active galactic nuclei

Abstract

We study the appearance of ${\nu }_{\tau }$ from active galactic nuclei (AGN) through neutrino spin-flip. We consider two situations: i) Spin (flavour)-precession in a reasonable strength of magnetic field in AGN, $B_{AGN}$ ii) Adiabatically resonant conversions caused by an interplay of $B_{AGN}$ and the violation of equivalence principle. Observational consequences for both situations are discussed.

6 pages, Latex (uses espcrc2), 1 figure included with epsf, talk presented at Fifth International Workshop on Tau Lepton Physics (TAU98), Santander, Spain, 14-17 September, 1998 [to appear in its proceedings in Nucl. Phys. B (Proc. Suppl.)]

References in corpus (4)

• Neutrino Oscillations in Strong Gravitational Fields
• Neutrino Flavor Conversion in Random Magnetic Fields
• Majorana Neutrinos and Gravitational Oscillation
• Neutrino Spin Transitions and the Violation of the Equivalence Principle

Cited by in corpus (4)

• Effects of neutrino mixing on high-energy cosmic neutrino flux
• Oscillating Neutrinos from the Galactic Center
• Comparison of high-energy galactic and atmospheric tau neutrino flux
• Neutrino conversions in cosmological gamma-ray burst fireballs