Decays of(vh_{11/2} ^n )^{10 + } and(pi d_{5/2} vh_{11/2} ^n )^{25/2 + } isomers in even-A Sn and odd-A Sb nuclei期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Decays of(vh_{11/2} ^n )^{10 + } and(pi d_{5/2} vh_{11/2} ^n )^{25/2 + } isomers in even-A Sn and odd-A Sb nuclei

Authors:	S. Lunardi P. J. Daly F. Soramel C. Signorini B. Fornal G. Fortuna A. M. Stefanini R. Broda W. Meczynski J. Blomqvist

Affiliation:	1. Dipartimento di Fisica dell'Università and INFN-Sezione di Padova, Italy 2. INFN-Laboratori Nazionali di Legnaro, Italy 3. Institute of Nuclear Physics, Cracow, Poland 4. Research Institute of Physics, Stockholm, Sweden

Abstract:	Isomeric decays in^{116, 118, 120}Sn and^{119, 120}Sb have been studied by measurements of delayedγ-rays following reactions of 26–40 MeV⁷Li ions on Cd targets. A 6.3 μs isomer of ((vh_{11/2} ^n )^{10 + } ) character in¹²⁰Sn is reported. The experimental variation inB(E2, 10⁺ → 8⁺) between (vh_{11/2} ^n ) states in^{116, 118, 120, 128, 130}Sn is compared with the expected dependence on vh^11/2 subshell occupation number. Isomerism in Sb nuclei is also discussed, and a known high-spin isomer in¹¹⁹Sb is assigned the same seniority-three configuration ((pi d_{5/2} vh_{11/2} ^n )^{25/2 + } ) as a well-established 340 μs isomer in¹¹⁷Sb.

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