Gravitational lensing of neutrinos in parametrized black hole spacetimes
Alloqulov M. Chakrabarty H. Malafarina D. Ahmedov B. Abdujabbarov A.
1 February 2025Institute of Physics
Journal of Cosmology and Astroparticle Physics
2025#2025Issue 2
We consider gravitational lensing of neutrinos in a black hole geometry that parametrizes departures from the Schwarzschild spacetime in the weak-field limit with plane-wave approximation. We use the Rezzolla-Zhidenko parametrization and apply the analysis to the effects of spatial curvature deviations from GR to a hypothetical system with a central object of mass of the order of a solar mass and a detector located at an Earth-like distance from the source. We find that the deformation parameters of the metric can have significant impact on the oscillation probabilities of the neutrinos. We also investigate the role of decoherence on flavor oscillations of the lensed neutrinos and show that the parameters of the metric do not have significant effect on the decoherence length.
astrophysical black holes , GR black holes , neutrino properties , neutrino theory
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University of Tashkent for Applied Sciences, Str. Gavhar 1, Tashkent, 100149, Uzbekistan
Department of Physics, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, 010000, Kazakhstan
Institute for Advanced Studies, New Uzbekistan University, Movarounnahr str. 1, Tashkent, 100000, Uzbekistan
Ulugh Beg Astronomical Institute, Astronomy str. 33, Tashkent, Uzbekistan
Shahrisabz State Pedagogical Institute, Shahrisabz Str. 10, Shahrisabz, 181301, Uzbekistan
Tashkent State Technical University, Tashkent, 100095, Uzbekistan
University of Tashkent for Applied Sciences
Department of Physics
Institute for Advanced Studies
Ulugh Beg Astronomical Institute
Shahrisabz State Pedagogical Institute
Tashkent State Technical University
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