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Title: Demonstration of Single-Barium-Ion Sensitivity for Neutrinoless Double-Beta Decay Using Single-Molecule Fluorescence Imaging

Journal Article · · Physical Review Letters

Here, 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 has been demonstrated. A single-step photo-bleach confirms the single ion interpretation. Individual ions are localized with super-resolution ($$\sim$$2~nm), and detected with a statistical significance of 12.9~$$\sigma$$ 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.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Texas, Arlington, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Organization:
NEXT Collaboration
Grant/Contract Number:
AC02-07CH11359; FG02-13ER42020; SC0017721; AC02-06CH11357
OSTI ID:
1412510
Alternate ID(s):
OSTI ID: 1429570; OSTI ID: 1460742; OSTI ID: 1908628
Report Number(s):
FERMILAB-PUB-17-521-ND; arXiv:1711.04782; PRLTAO; 1636186
Journal Information:
Physical Review Letters, Vol. 120, Issue 13; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

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Cited By (6)

Design of a multiple-reflection time-of-flight mass spectrometer for barium-tagging journal August 2019
Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay journal October 2019
High Pressure Gas Xenon TPCs for Double Beta Decay Searches journal April 2019
Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay preprint January 2019
High Pressure Gas Xenon TPCs for Double Beta Decay Searches preprint January 2019
Imaging individual barium atoms in solid xenon for barium tagging in nEXO journal April 2019

Figures / Tables (5)