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arXiv · 2304.03746

Neutrino flavor oscillations inside matter in conformal coupling models

Fayçal Hammad·Parvaneh Sadeghi·Nicolas Fleury
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Abstract

We recently studied neutrinos flavor oscillations in vacuum within conformal coupling models. In this paper, we extend that analysis by investigating neutrino flavor oscillations inside matter within a general conformal coupling scenario. We first derive the general formula for the flavor transition probability inside matter in arbitrary static and spherically symmetric spacetimes. The modified resonance formula of the MSW effect is derived and the corresponding adiabaticity parameter of the effect is extracted. An application of our results to the case of two-flavor neutrinos within the well-known chameleon and symmetron conformal coupling models is made.

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Fayçal Hammad, Parvaneh Sadeghi, Nicolas Fleury. 2023-04-07. Neutrino flavor oscillations inside matter in conformal coupling models. https://doi.org/10.1103/physrevd.107.104015

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