Search for Majorana Neutrinos with the Complete KamLAND-Zen Dataset
Search for Majorana Neutrinos with the Complete KamLAND-Zen Dataset
We present a search for neutrinoless double-beta ($0\nu\beta\beta$) decay of $^{136}$Xe using the full KamLAND-Zen 800 dataset with 745 kg of enriched xenon, corresponding to an exposure of $2.097$ ton yr of $^{136}$Xe. This updated search benefits from a more than twofold increase in exposure, recovery of photo-sensor gain, and …