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High Energy Physics - Phenomenology

arXiv:2305.05903 (hep-ph)
[Submitted on 10 May 2023 (v1), last revised 30 May 2023 (this version, v2)]

Title:Neutrino oscillations induced by chiral torsion

Authors:Riya Barick, Indrajit Ghose, Amitabha Lahiri
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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.
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
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:2305.05903 [hep-ph]
  (or arXiv:2305.05903v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2305.05903
Journal reference: Letters in High Energy Physics 362, 2023
Related DOI: https://doi.org/10.31526/lhep.2023.362

Submission history

From: Amitabha Lahiri [view email]
[v1] Wed, 10 May 2023 05:12:22 UTC (24 KB)
[v2] Tue, 30 May 2023 09:54:41 UTC (24 KB)
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