Application of Selenium-82 for Short Base Neutrino Oscillations Searches

TL;DR

This paper explores using selenium-82 in neutrino detection experiments, proposing a new experimental scheme to search for additional neutrino species based on its absorption properties and a spherical geometry model.

Contribution

It introduces a novel application of selenium-82 for short baseline neutrino oscillation searches and develops a spherical geometry model for neutrino path length analysis.

Findings

Derived expression for neutrino path length in spherical geometry with oscillations

Proposed experimental scheme utilizing scintillating crystals with selenium-82

Highlighted potential of selenium-82 for detecting new neutrino species

Abstract

Characteristics of neutrino absorption by $^{82}$Se nucleus reaction -- low threshold value, high absorption cross section of neutrinos, emitted by artificial sources, make selenium-82 perspective object to search for new neutrino species in calibration experiments. One of the interesting possibilities is usage of scintillating crystals. In (3+1) model for spherical geometry the expression for neutrino path length in a setup in the presence of oscillations is obtained and the scheme of experiment is proposed.