Search for sterile neutrinos at radioactive ion beam facilities

3rd Symposium on Prospects in the Physics of Discrete Symmetries

Espinoza, Catalina^1,2 ; Lazauskas, Rimantas^3 ; Volpe, Cristina^4

Centro de Física Teórica de Partículas, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal^1

Departamento de Física Teórica, IFIC, Universidad de Valencia-CSIC, E-46100 Valencia, Spain^2

IPHC, IN2P3-CNRS/Université Louis-Pasteur, BP 28, F-67037 Strasbourg cedex 2, France^3

AstroParticule et Cosmologie (APC), Université Paris Diderot-Paris 7, 10 rue Alice Domon et Léonie Duquet, 75205 Paris cedex 13, France^4

关键词: Inverse beta-decay;    Liquid scintillator;    Neutrino detection;    Neutrino experiments;    Radioactive ion beam facility;    Radioactive ions;    Sterile neutrinos;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/447/1/012063/pdf
DOI  :  10.1088/1742-6596/447/1/012063

来源: IOP

【 摘 要 】

We propose applications of Radioactive Ion Beam facilities to investigate physics beyond the Standard Model. In particular, we focus upon the search for sterile neutrinos by means of a low energy beta-beam with a Lorentz boost factor of 1. In the considered setup, collected8Li radioactive ions are sent inside a 4π detector filled with a liquid scintillator, with inverse-beta decay as neutrino detection channel. We provide exclusion curves for the sterile neutrino mixing parameters, based upon the 3+1 formalism, depending upon the achievable ion intensity. The proposed experiment represents a possible alternative to clarify the current anomalies observed in neutrino experiments.