Test of non-standard neutrino properties with the BOREXINO source experiments

TL;DR

This paper evaluates how placing radioactive sources near BOREXINO can test non-standard neutrino properties, potentially improving current limits through measured event rates.

Contribution

It provides detailed calculations of event rates considering both standard and non-standard neutrino interactions near BOREXINO.

Findings

Current limits on non-standard neutrino properties can be significantly improved.

Event rate calculations help distinguish between standard and non-standard neutrino interactions.

The study offers a framework for future experiments to probe neutrino properties.

Abstract

We calculate the event rates induced by high-intensity radioactive sources of nu_e (51Cr) and of anti-nu_e (90Sr), to be located near the BOREXINO detector. Calculations are performed both in the standard case and assuming non-standard properties of neutrinos, including flavor oscillations, neutrino electromagnetic interactions, and deviations from the standard vector and axial couplings in the nu_e-e interaction. It is shown that, in some cases, the current limits on non-standard neutrino properties can be significantly improved.