Probing New Physics in Low Energy Solar Neutrino Oscillation Data

TL;DR

This paper investigates how nonstandard neutrino interactions affect low energy solar neutrino oscillations, using Borexino data and projections for future experiments to constrain these effects.

Contribution

It provides the first combined analysis of standard and nonstandard neutrino interactions in low energy solar neutrino data, including bounds from current and future experiments.

Findings

Standard model parameters estimated from Borexino data.

Bounds placed on nonstandard interactions at source and detector.

Projected sensitivities for future experiments like LENA and Jinpin.

Abstract

We explore the effects of nonstandard neutrino interactions in the lower components of the solar neutrino spectrum which are predominant by the vacuum oscillations. The recent measurements of Borexino experiment between 2011 and 2015 provide a clean test to study the nonstandard neutrino interactions at the source (sun) and the at solar detector. In this work, first the possible standard model parameters are estimated from the combined data of the low energy regime and then the nonstandard effects at the source, at the detector, and from the interplay between source and detector parameters are bounded. The same effects are also investigated for the proposed experiments like LENA and Jinpin Neutrino Experiment with their projected sensitivities.