Final results on ${}^\mathbf{82 }{\hbox {Se}}$ double beta decay to the ground state of ${}^\mathbf{82 }{\hbox {Kr}}$ from the NEMO -3 experiment
Here, using data from the NEMO- 3 experiment, we have measured the two-neutrino double beta decay (2νββ) half-life of 82 Se as T 2ν1/2 =[9.39±0.17( stat )±0.58( syst )]×10 19 y under the single-state dominance hypothesis for this nuclear transition.