Experiment BEST-2 with 58Co neutrino source

TL;DR

This paper reports on an experiment using a 58Co neutrino source with a gallium target to investigate the gallium anomaly and neutrino oscillations, aiming to determine oscillation parameters including the challenging Δm2.

Contribution

It introduces a new experimental setup capable of exploring neutrino oscillation parameters over a broad range, especially Δm2, and assesses the energy dependence of the gallium anomaly.

Findings

Potential to identify neutrino oscillation parameters.

Ability to study energy dependence of the gallium anomaly.

Provides data on sterile neutrino transition parameters.

Abstract

The article describes a new experiment with an artificial neutrino source 58Co on a gallium target GGNT (SAGE). The goal of the experiment is to study the gallium anomaly. The experiment makes it possible to find the parameters of oscillation transitions of electron neutrinos to sterile states in a wide range of parameters. Including the parameter {\Delta}m2, the experimental determination of which usually causes significant difficulties. An important feature of the experiment is the possibility of identifying the dependence of the gallium anomaly on the neutrino energy.