Energy of the 4(+) isomer and new bands in the odd-odd nucleus Br74

J. Döring, J. W. Holcomb, T. D. Johnson, M. A. Riley, S. L. Tabor, P. C. Womble, and G. Winter
Phys. Rev. C 47, 2560 – Published 1 June 1993
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Abstract

High-spin states of the odd-odd nucleus Br74 were investigated via the reactions Ni58 (19F,2pn)74Br and Cu65(12C,3n)74Br at beam energies of 62 and 50 MeV, respectively. On the basis of coincidence data new levels have been introduced and partly grouped into rotational bands. Some of these new states decay to known levels of negative-parity bands built on both the ground state and the long-lived 4(+) isomer. Thus, an excitation energy of 13.8 keV has been deduced for the long-lived isomer in Br74. The level sequences observed are interpreted in terms of Nilsson configurations in conjunction with collective excitations.

  • Received 1 December 1992

DOI:https://doi.org/10.1103/PhysRevC.47.2560

©1993 American Physical Society

Authors & Affiliations

J. Döring, J. W. Holcomb, T. D. Johnson, M. A. Riley, S. L. Tabor, and P. C. Womble

  • Department of Physics, Florida State University, Tallahassee, Florida 32306

G. Winter

  • Forschungszentrum Rossendorf, Institut für Kern- und Hadronenphysik, O-8051 Dresden, Federal Republic of Germany

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Issue

Vol. 47, Iss. 6 — June 1993

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