Speakers
Prof.
David Nygren
(University of Texas at Arlington)Dr
David Nygren
(Lawrence Berkeley National Laboratory)
Description
A new method to tag the barium daughter in the double beta decay of $^{136}$Xe is described, based on adaptation of the single molecule fluorescent imaging (SMFI) technique. Individual barium dications chelated on a transparent plate are detected at a significance of 12.9 $\sigma$, with a spatial resolution of 2 nm rms. Observation of a single-step photo-bleach transition confirms the interpretation of single ion sensitivity. This result is the first step toward an essentially background-free technique in the search for neutrino-less double beta decay in $^{136}$Xe, based on robust event discrimination by SMFI in a high-pressure xenon gas TPC.
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| Collaboration name | NEXT Collaboration |
Primary authors
Mr
Austin McDonald
(University of Texas at Arlington)
Prof.
Ben Jones
(University of Texas at Arlington)
Prof.
David Nygren
(University of Texas at Arlington)
