Results of a direct search using synchrotron radiation for the low-energy ${}^{229}$Th nuclear isomeric transition

Justin Jeet, Christian Schneider, Scott T. Sullivan +6

We report the results of a direct search for the ${}^{229}$Th ($I^p=3/2^{+}\leftarrow 5/2^{+}$) nuclear isomeric transition, performed by exposing ${}^{229}$Th-doped LiSrAlF${}_6$ crysta…