Phys.Rev. C 106, 024328 (2022)

E.Aprile, for the XENON Collaboration

Double-weak decays of ¹²⁴Xe and ¹³⁶Xe in the XENON1T and XENONnT experiments

RADIOACTIVITY ¹²⁴Xe(2EC); ¹³⁶Xe(2β^-); measured radiation spectra, K- and L1-shell x rays from electron capture process for the decay of ¹²⁴Xe, T_1/2 for 2νϵϵ, and for 0νββ decay in ¹³⁶Xe in XENON1T and XENONnT experiments using dual-phase xenon time projection cylindrical chambers (TPCs) filled with liquid xenon (LXe) and 494 and photo-multiplier tubes (PMTs) in XENONnT and 248 PMTs in XENON1T at INFN-Gran Sasso, LNGS, with detailed investigations of background radiation from the decays of ⁸B, ⁴⁰K, ⁶⁰Co, ^83mKr, ⁸⁵Kr, ¹²⁵I, ¹²⁵Xe, ^131mXe, ¹³³Xe, ¹³⁷Xe, ²¹⁴Bi, ²²²Rn, ²²⁶Ra, ²²⁸Th, ²³²Th and ²³⁸U. ¹²⁴Xe; deduced T_1/2 for 2νϵϵ decay. ¹³⁶Xe; deduced lower limit of T_1/2 for 0νββ decay

doi: 10.1103/PhysRevC.106.024328