Phys.Rev. C 89, 015502 (2014)

J.B.Albert, for the EXO Collaboration

Improved measurement of the 2νββ half-life of ¹³⁶Xe with the EXO-200 detector

RADIOACTIVITY ¹³⁶Xe(2β^-); measured 2νββ energy spectrum and half-life using EXO-200 detector composed of liquid xenon (LXe) and time-projection chamber (TPC) located at Waste Isolation Pilot Plant, New Mexico; deduced 2νββ nuclear matrix element (NME). Comparison with previous experimental results. Tabulation of experimental half-lives and NMEs for 2νββ decays of ⁴⁸Ca, ⁷⁶Ge, ⁸²Se, ⁹⁶Zr, ¹⁰⁰Mo, ¹¹⁶Cd, ¹³⁰Te, ¹³⁶Xe, ¹⁵⁰Nd.

doi: 10.1103/PhysRevC.89.015502