Improved limits on ${\beta }^{+}$EC and ECEC processes in ${}^{74}$Se

A. S. Barabash, V. B. Brudanin, A. A. Klimenko +8

New limits on ${\beta }^{+}$EC and ECEC processes in ${}^{74}$Se have been obtained using a 600 cm${}^3$ HPGe detector and an external source consisting of 1600 g of a natural selenium powder.…