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Title: Searches for double beta decay of Xe 134 with EXO-200

Journal Article · · Physical Review D

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 T$$2νββ\atop{1/2}$$ > 8.7 × 1020 yr and T$$0νββ\atop{1/2}$$ > 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 . In conclusion, these limits exceed those in the literature for 134 Xe , improving by factors of nearly 105 and 2 for the two antineutrino and neutrinoless modes, respectively.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
EXO-200 Collaboration
Grant/Contract Number:
AC02-76SF00515; ACI576RL10830
OSTI ID:
1410523
Alternate ID(s):
OSTI ID: 1408179; OSTI ID: 1430699
Report Number(s):
PNNL-SA-131514; PRVDAQ; TRN: US1800122
Journal Information:
Physical Review D, Vol. 96, Issue 9; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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