Discovery of the ${}^{151}$Eu $\alpha$ decay

N. Casali, S. S. Nagorny, F. Orio +18

We report on the first compelling observation of $\alpha$ decay of ${}^{151}$Eu to the ground state of ${}^{147}$Pm. The measurement was performed using a 6.15 g Li${}_6$Eu(BO${}_3$)${}_3$ crysta…