Neutrino oscillations induced by chiral torsion
Abstract
Neutrino mixing is caused by the fact that neutrino flavors are not eigenstates of the free Hamiltonian. This causes oscillations among different neutrino flavors. When neutrinos pass through a medium, weak interactions produce different effective masses for neutrinos of different flavors, leading to a modification of the mixing parameters. In curved spacetime there is an additional contribution to neutrino Hamiltonian from a torsion-induced four-fermion interaction, which also causes neutrino mixing while propagating through fermionic matter. We provide an outline of the calculation of this effect on neutrino oscillation.
Keywords
Cite
@article{arxiv.2305.05903,
title = {Neutrino oscillations induced by chiral torsion},
author = {Riya Barick and Indrajit Ghose and Amitabha Lahiri},
journal= {arXiv preprint arXiv:2305.05903},
year = {2023}
}
Comments
Based on talk delivered by Riya Barick at the International Conference on Neutrinos and Dark Matter (NuDM-2022), Sharm El-Sheikh, Egypt, 25-28 September, 2022