Detailed Spectroscopy of the Doubly Closed Shell Nucleus Sn:132 First Observation of Octupole Collectivity

B. Fogelberg, M. Hellström, D. Jerrestam, H. Mach, J. Blomqvist, A. Kerek, L. O. Norlin, and J. P. Omtvedt
Phys. Rev. Lett. 73, 2413 – Published 31 October 1994
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Abstract

The angular momenta and parities of the low-lying states of Sn132 have been firmly determined through studies of the β decay of In132. The lowest lying state with a negative parity is shown to have a collective octupole character. Several particle-hole multiplets have been identified, including the lowest lying proton excitation. More than about 20% of the theoretically estimated bound states of Sn132 have been identified.

  • Received 17 June 1994

DOI:https://doi.org/10.1103/PhysRevLett.73.2413

©1994 American Physical Society

Authors & Affiliations

B. Fogelberg, M. Hellström*, D. Jerrestam, and H. Mach

  • Department of Neutron Research, Uppsala University, S-61182 Nyköping, Sweden

J. Blomqvist, A. Kerek, and L. O. Norlin

  • Department of Physics Frescati, Royal Institute of Technology, Frescativägen 24, S-10405 Stockholm, Sweden

J. P. Omtvedt

  • University of Oslo, Department of Chemistry, P.O. Box 1033 Blindern, N-0315 Oslo, Norway

  • *Present address: National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing MI 48824-1321.

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Vol. 73, Iss. 18 — 31 October 1994

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