Two-neutrino 2β decay of 116Cd and new half-life limits on 2β decay of 180W and 186W Original Research Article

Studies of the 2β decay of 116Cd, 180W and 186W have been performed in the Solotvina Underground Laboratory with the help of the super-low background 116CdWO4 crystal scintillators. The half-life value of the two-neutrino 2β decay of 116Cd has been revised as View the MathML source Besides, the new half-live limits on different modes of this process have been established for two natural tungsten isotopes, in particular, T1/2⩾1.0 (1.6)×1021 yr at 90% (68%) C.L. for the neutrinoless 2β decay of 186W to the ground (0+) and first excited (2+) level of 186Os.