(EC+β +) decay of 130Nd and 140Tb
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, People’s Republic of China
* e-mail: firstname.lastname@example.org
Revised: 25 May 2000
Published online: 15 August 2000
130Ndand 140Tb were produced by irradiation of 96Ru and 106Cd with 36Ar. The two nuclides were identified and studied by using a He-jet fast tape transport system in combination with X-γ and γ-γ coincidence measurements. The half-life of 130Nd was determined to be 13 ± 3s. The (EC+β +) decay scheme of 130Nd was proposed for the first time, and the spins and parities of the ground state and observed low-lying states in the daughter nucleus 130Pr were tentatively assigned. The previous (EC+β +) decay scheme of 140Tb was revised, and the spin and parity of its ground state were assigned to be 7+.
PACS: 23.40.-s β decay; double β decay; electron and muon capture – / 23.20.Lv Gamma transitions and level energies – / 21.60.Cs Shell model –
© Società Italiana di Fisica and Springer-Verlag, 2000