Abstract
A new method to tag the barium daughter in the double-beta decay of ^{136}Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba^{++}) resolution at a transparent scanning surface is demonstrated. A single-step photobleach confirms the single ion interpretation. Individual ions are localized with superresolution (∼2 nm), and detected with a statistical significance of 12.9σ over backgrounds. This lays the foundation for a new and potentially background-free neutrinoless double-beta decay technology, based on SMFI coupled to high pressure xenon gas time projection chambers.
Original language | English (US) |
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Article number | 132504 |
Journal | Physical Review Letters |
Volume | 120 |
Issue number | 13 |
DOIs | |
State | Published - Mar 26 2018 |
ASJC Scopus subject areas
- General Physics and Astronomy