Isomeric and β -decay spectroscopy of Ho 173,174
- Liu, J. J.
- Lee, J.
- Watanabe, H.
- Nishimura, S.
- Zhang, G. X.
- Wu, J.
- Walker, P. M.
- Regan, P. H.
- Söderström, P. A.
- Kanaoka, H.
- Korkulu, Z.
- Lee, P. S.
- Yagi, A.
- Dai, A. C.
- Xu, F. R.
- Ahn, D. S.
- Alharbi, T.
- Baba, H.
- Browne, F.
- Bruce, A. M.
- Carroll, R. J.
- Chae, K. Y.
- Dombradi, Zs
- Doornenbal, P.
- Estrade, A.
- Fukuda, N.
- Ideguchi, E.
- Inabe, N.
- Isobe, T.
- Kanaya, S.
- Kojouharov, I.
- Kondev, F. G.
- Kubo, T.
- Kubono, S.
- Kurz, N.
- Kuti, I.
- Lalkovski, S.
- Lane, G. J.
- Lee, C. S.
- Lee, E. J.
- Lorusso, G.
- Lotay, G.
- Moon, C. B.
- Nishizuka, I.
- Nita, C. R.
- Odahara, A.
- Patel, Z.
- Phong, V. H.
- Podolyák, Zs
- Roberts, O. J.
- Sakurai, H.
- Schaffner, H.
- Shand, C. M.
- Shimizu, Y.
- Sumikama, T.
- Suzuki, H.
- Takeda, H.
- Terashima, S.
- Vajta, Zs
- Valiente-Dobón, J. J.
- Xu, Z. Y.
Publication date
August 2020
DOIAbstract
β-decay spectroscopy of Ho173,174 (Z = 67, N = 106,107) was conducted at Radioactive Isotope Beam Factory at RIKEN by using in-flight fission of a 345-MeV/u U238 primary beam. A previously unreported isomeric state at 405 keV with half-life of 3.7(12) μs and a spin and parity of (3/2+) is identified in Ho173. Moreover, a new state with a spin and parity of 9- was discovered in Er174. The experimental log ft values of 5.84(20) and 5.25(18) suggest an allowed-hindered β decay from the ground state of Ho174 to the Kπ=8- isomeric state in Er174. Configuration-constrained potential energy surface (PES) calculations were performed and the predictions are in reasonable agreement with the experimental results.</p
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