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 T2?ßß
1=2 > 8.7 × 1020 yr and T0?ßß
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. These limits exceed those in the literature for 134Xe, improving by factors of nearly 105 and 2 for the two antineutrino and neutrinoless
modes, respectively.
Revised: February 4, 2021 |
Published: November 3, 2017
Citation
Albert J.B., G. Anton, I. Badhrees, P.S. Barbeau, R. Bayerlein, D. Beck, and V. Belov, et al. 2017.Searches for double beta decay of 134Xe with EXO-200.Physical Review D 96, no. 9:Article No. 092001.PNNL-SA-131514.doi:10.1103/PhysRevD.96.092001