Search for double beta decay of ${}^{136}$Ce and ${}^{138}$Ce with HPGe gamma detector

P. Belli, R. Bernabei, R. S. Boiko +9

Search for double $\beta$ decay of ${}^{136}$Ce and ${}^{138}$Ce was realized with 732 g of deeply purified cerium oxide sample measured over 1900 h with the help of an ultra-low backgroun…