Neutrino spin oscillations in gravitational fields

Abstract

We study neutrino spin oscillations in black hole backgrounds. In the case of a charged black hole, the maximum frequency of oscillations is a monotonically increasing function of the charge. For a rotating black hole, the maximum frequency decreases with increasing the angular momentum. In both cases, the frequency of spin oscillations decreases as the distance from the black hole grows. As a phenomenological application of our results, we study simple bipolar neutrino system which is an interesting example of collective neutrino oscillations. We show that the precession frequency of the flavor pendulum as a function of the neutrino number density will be higher for a charged/non-rotating black hole compared with a neutral/rotating black hole respectively.

Replaced with the version accepted for publication in Gravitation and Cosmology, Springer. 10 pages. 4 figures

References in corpus (3)

• Analysis of Collective Neutrino Flavor Transformation in Supernovae
• Neutrino oscillations in Kerr-Newman space-time
• Quantum Gravity signals in neutrino oscillations

Cited by in corpus (9)

• Aspects of Neutrino Oscillation in Alternative Gravity Theories
• Neutrino spin oscillations in gravitational fields in non-commutative Spaces
• Three-generation neutrino oscillations in curved spacetime
• Neutrino oscillation in the $q$-metric
• Scattering of neutrinos by a rotating black hole accounting for the electroweak interaction with an accretion disk
• Curved-spacetime dynamics of spin-$\frac{1}{2}$ particles in superposed states from a WKB approximation of the Dirac equation
• Neutrino spin oscillations in gravitational fields in higher dimensions
• Can Gravity Distinguish between Dirac and Majorana Neutrinos?
• Neutrino spin oscillations in gravitational fields in noncommutative higher dimensions