We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Beta-gamma spectroscopy of the neutron-rich <sup>150</sup>Ba.
- Authors
Yokoyama, R; Ideguchi, E; Simpson, G S; Tanaka, Mn; Nishimura, S; Doornenbal, P; Lorusso, G; Söderström, P-A; Sumikama, T; Wu, J; Xu, Z Y; Aoi, N; Baba, H; Garrote, F L Bello; Benzoni, G; Browne, F; Daido, R; Fang, Y; Fukuda, N; Gottardo, A
- Abstract
Excited states in the neutron-rich nucleus 150Ba have been observed via β--γ spectroscopy at the Radioactive Isotope Beam Factory, RIKEN Nishina Center. The 150Ba ions were produced by the in-flight fission of a 238U beam with an energy of 345 MeV/nucleon. The E(2+) energy of 150Ba was identified at 100 keV, which is the lowest known in the neutron-rich Ba isotopes. A γ -ray peak was also observed at 597 keV. A mean-field calculation with a fully 3D real space was performed and a static octupole deformation was obtained for the Ba isotopes. Kπ = 0- and 1- excited states with significant octupole collectivity were newly predicted at around or lower than 1 MeV on the ground state of 150Ba by a random-phase approximation calculation. The 597 keV γ ray can be interpreted as a negative-parity state, showing that 150Ba may possess octupole collectivity.
- Publication
Progress of Theoretical & Experimental Physics: PTEP, 2018, Vol 2018, Issue 4, p1
- ISSN
2050-3911
- Publication type
Article
- DOI
10.1093/ptep/pty037