Searches for double beta decay of 134Xe with EXO-200
Abstract
Searches for double beta decay of 134Xe were performed with EXO-200, a single-phase liquid xenon detector designed to search for neutrinoless double beta decay of 136Xe. Using an exposure of 29.6 kg .yr , the lower limits of T1/2 2 ν β β>8.7 ×1020 yr and T1/2 0 ν β β>1.1 ×1023 yr at 90% confidence level were derived, with corresponding half-life sensitivities of 1.2 ×1021 yr and 1.9 ×1023 yr . These limits exceed those in the literature for 134Xe, improving by factors of nearly 1 05 and 2 for the two antineutrino and neutrinoless modes, respectively.
- Publication:
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Physical Review D
- Pub Date:
- November 2017
- DOI:
- arXiv:
- arXiv:1709.07384
- Bibcode:
- 2017PhRvD..96i2001A
- Keywords:
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- High Energy Physics - Experiment
- E-Print:
- 45 pages in total, author list starting page 29, 14 figures, 5 tables, published in Phys. Rev. D. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-08/
