Broken pairs and evolution of collectivity in the A≊140 mass region: High spin states of the ^138_60Nd_78 nucleus

de Angelis, G. and Cardona, M. A. and De Poli, M. and Lunardi, S. and Bazzacco, D. and Brandolini, F. and Vretenar, Dario and Bonsignori, G. and Savoia, M. and Wyss, R. and Terrasi, F. and Roca, V. (1994) Broken pairs and evolution of collectivity in the A≊140 mass region: High spin states of the ^138_60Nd_78 nucleus. Physical Review C, 49 (6). pp. 2990-2999. ISSN 0556-2813

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Abstract

An in-beam γ-ray study performed with the 121Sb(19F,4n) reaction has established the high spin level structure of the N=78 nucleus 138Nd. States up to I=21ħ and 8.5 MeV excitation energy have been indentified. High spin states are described in the framework of the cranking model and of the interacting boson model with broken pairs. The calculations reproduce levels up to I=18ħ including the two 10+ states which, from the feeding cascades, are identified as the νh^-1_11/2 and πh^2_11/2 excitations. Cranked Strutinsky type calculations predict opposite shapes for the two different types of excitations.

Item Type: Article
Date: June 1994
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (1994) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 17 May 2014 13:14
Last Modified: 17 May 2014 13:14
URI: http://digre.pmf.unizg.hr/id/eprint/1429

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