Detection of very small neutrino masses in double-beta decay using laser tagging

Details Detection of very small neutrino masses in double-beta decay using laser tagging Detection of very small neutrino masses in double-beta decay using laser tagging

2000-02-02

arxiv.org/abs/hep-ex/0002003v2

Phys.Lett.B480:12-18,2000

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 2 figures

Scientific paper

10.1016/S0370-2693(00)00404-4

We describe an approach to the study of neutrino masses that combines quantum optics techniques with radiation detectors to obtain unprecedented sensitivity. With it the search for Majorana neutrino masses down to $\sim$10 meV will become accessible. The experimental technique uses the possibility of individually detecting $\rm Ba^+$-ions in the final state of $\rm ^{136}Xe$ double-beta decay via resonant excitation with a set of lasers aimed at a specific location in a large Time Projection Chamber. The specificity of the atomic levels provides tagging and, together with more traditional event recognition parameters, greatly suppresses radioactive backgrounds.

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