Combined effect of NSI and SFP on solar electron neutrino oscillation

TL;DR

This paper investigates how the combined effects of spin-flavor precession (SFP) and non-standard neutrino interactions (NSI) influence solar electron neutrino survival probabilities, highlighting the importance of considering both effects in data analysis.

Contribution

It provides a detailed analysis of the combined impact of SFP and NSI on solar neutrino oscillations, which was not thoroughly examined before.

Findings

Survival probability curves with combined effects resemble standard MSW curves for certain parameters.

Both effects can significantly alter neutrino survival probabilities, affecting experimental interpretations.

The combined effects must be considered in low energy solar neutrino data analysis.

Abstract

The combined effect of SFP and the non standard neutrino interaction (NSI) on the survival probability of solar electron neutrinos (assumed to be Dirac particles) is examined for various values of $\epsilon_{11}$, $\epsilon_{12}$ and $\mu B$. It is found that the neutrino survival probability curves affected by SFP and NSI effects individually for some values of the parameters ($\epsilon_{11}$, $\epsilon_{12}$ and $\mu B$) get close to the standard MSW curve when both effects are combined. Therefore, the combined effect of SFP and NSI needs to be taken into account when the solar electron neutrino data obtained by low energy solar neutrino experiments is investigated.