Search for the 229Pa Parity Doublet via Internal-Conversion Spectroscopy at FRIB

Silviu-Marian Udrescu, Aiden Boyer, Lan Cheng +7

The radioisotope ${}^{229}$Pa is predicted to possess a nearly degenerate ground-state parity doublet. Previous $\gamma$-ray and conversion-electron spectroscopy suggests a splitting of $…