Analytical description of the Day-Night neutrino asymmetry
A. D. Supanitsky (1), J. C. D'Olivo (1), and G. A. Medina-Tanco (1), ((1) Departamento de F\'isica de Altas Energ\'as, Instituto de Ciencias, Nucleares, Universidad Nacional Aut\'onoma de M\'exico, M\'exico.)
TL;DR
This paper introduces a new analytical method to accurately describe Earth matter effects on solar neutrino oscillations, improving upon previous perturbation-based models and applicable across a wider energy range.
Contribution
It provides a novel analytical approach for modeling Earth matter effects on neutrino oscillations, surpassing the accuracy of existing perturbation methods.
Findings
More accurate analytical expression for day-night neutrino asymmetry.
Applicable to higher neutrino energies.
Enhanced modeling of Earth matter effects.
Abstract
We present a new treatment of the Earth matter effects on the neutrino oscillations that is valid for an arbitrary density profile. When applied to the the study of the day-night effect on the solar neutrino flux it renders us a simple analytical expression, which is more accurate than those derived by using the perturbation theory and can be extended to higher energies.
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Taxonomy
TopicsNeutrino Physics Research · Cosmology and Gravitation Theories · Astrophysics and Cosmic Phenomena