Octupole excitations in Cs-141,Cs-144 and the pronounced decrease of dipole moments with neutron number in odd-Z neutron-rich Cs-141,Cs-143,Cs-144

Journal article

The level scheme of odd-Z neutron-rich 141Cs (Z=55, N=86) was extended and expanded and that of 144Cs (N=89) was identified for the first time by means of γ-γ-γ coincidence measurements of prompt γ rays in the spontaneous fission of 252Cf with Gammasphere. Spin/parity was assigned to the levels based on angular correlations and level systematics in 141,143Cs. Parity doublets characteristic of both simplex quantum number s=+i and s=-i were proposed in 141Cs. The tests by using rotational frequ...

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Authors: Luo, Y; Rasmussen, J; Hamilton, J; Ramayya, A; Liu, S

• Publication status: Published
• Journal: NUCLEAR PHYSICS A
• Volume: 838
• Issue: 1-4
• Pages: 1-19
• Publication date: 2010-07-01
• DOI: 10.1016/j.nuclphysa.2010.03.003
• ISSN: 0375-9474
• Language: English
• Keywords: RADIOACTIVITY Cf-252(SF); deduced levels, J, pi, bands, B(E1)/B(E2), dipole moment Comparison with systematics of adjacent nuclei; measured E gamma, I gamma, gamma gamma-coin, ICCs, angular correlations using Gammasphere, Cs-141,Cs-144