Neutrino transition magnetic moments within the non-standard neutrino-nucleus interactions

TL;DR

This paper investigates non-standard tensorial neutrino interactions and their implications for neutrino magnetic moments and electromagnetic properties, using nuclear physics models and experimental sensitivities from COHERENT, TEXONO, and GEMMA.

Contribution

It introduces a combined nuclear physics and experimental analysis approach to predict effects of tensorial non-standard interactions on neutrino electromagnetic properties.

Findings

Predicted sizeable transition neutrino magnetic moments.

Estimated event rates for exotic tensor interactions at neutrino detectors.

Addressed potential signals of neutrino milli-charges.

Abstract

Tensorial non-standard neutrino interactions are studied through a combined analysis of nuclear structure calculations and a sensitivity $\chi^2$-type of neutrino events expected to be measured at the COHERENT experiment, recently planned to operate at the Spallation Neutron Source (Oak Ridge). Potential sizeable predictions on transition neutrino magnetic moments and other electromagnetic parameters, such as neutrino milli-charges, are also addressed. The non-standard neutrino-nucleus processes, explored from nuclear physics perspectives within the context of quasi-particle random phase approximation, are exploited in order to estimate the expected number of events originating from vector and tensor exotic interactions for the case of reactor neutrinos, studied with TEXONO and GEMMA neutrino detectors.