Prompt Proton Decay of a Well-Deformed Rotational Band in 58Cu

D. Rudolph, C. Baktash, J. Dobaczewski, W. Nazarewicz, W. Satuła, M. J. Brinkman, M. Devlin, H.-Q. Jin, D. R. LaFosse, L. L. Riedinger, D. G. Sarantites, and C.-H. Yu
Phys. Rev. Lett. 80, 3018 – Published 6 April 1998
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Abstract

An excited well-deformed rotational band has been observed in the N=Z odd-odd nucleus 58Cu. The first excited state in this band decays via γ emission to the spherical states associated with the first minimum in the potential, thus providing for its unambiguous assignment to 58Cu. In contrast, its bandhead decays via emission of a prompt 2.4(1) MeV proton to an excited state in the daughter nucleus 57Ni. This is the first observation of proton decay from states associated with a deformed secondary minimum in the potential. Self-consistent Hartree-Fock calculations reproduce well both the large collectivity of this band and the general trend of its moment of inertia.

  • Received 19 November 1997

DOI:https://doi.org/10.1103/PhysRevLett.80.3018

©1998 American Physical Society

Authors & Affiliations

D. Rudolph1,2, C. Baktash2, J. Dobaczewski3,4,5, W. Nazarewicz2,3,4, W. Satuła3,4,5, M. J. Brinkman2, M. Devlin6, H.-Q. Jin3,*, D. R. LaFosse6,†, L. L. Riedinger3, D. G. Sarantites6, and C.-H. Yu2

  • 1Sektion Physik, Ludwig-Maximilians-Universität München, D-85748 Garching, Germany
  • 2Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
  • 3Department of Physics, University of Tennessee, Knoxville, Tennessee 37996
  • 4Institute of Theoretical Physics, Warsaw University, PL-00681 Warsaw, Poland
  • 5Joint Institute for Heavy Ion Research, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
  • 6Chemistry Department, Washington University, St. Louis, Missouri 63130

  • *Present address: NASA Ames Research Center, Moffett Field, CA 94035.
  • Present address: SUNY Stony Brook, Stony Brook, NY 11794.

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Vol. 80, Iss. 14 — 6 April 1998

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