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Phys. Rev. C 65, 061304(R) (2002) [4 pages]

Structure of the “island of inversion” nucleus 33Mg

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B. V. Pritychenko1,2,*, T. Glasmacher1,2, P. D. Cottle3, R. W. Ibbotson1,†, K. W. Kemper3, L. A. Riley4, A. Sakharuk1,‡, H. Scheit1,2,§, M. Steiner1, and V. Zelevinsky1,2
1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
3Department of Physics, Florida State University, Tallahassee, Florida 32306
4Department of Physics and Astronomy, Earlham College, Richmond, Indiana 47374

Received 4 March 2002; published 24 June 2002

The excitation of the 485-keV state of the neutron-rich “island of inversion” nucleus 33Mg was measured in intermediate-energy Coulomb excitation. The result of the present experiment suggests that the 485-keV state is a rotational excitation built on the ground state, not a state with different intrinsic structure as proposed previously. If the 485-keV state is indeed a rotational excitation, then the deformation of 33Mg is similar to that of other nuclei in the island of inversion.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.061304
DOI:
10.1103/PhysRevC.65.061304
PACS:
25.70.De, 27.30.+t, 23.20.Js, 21.60.Cs

*Present address: Plumtree Software, Inc., San Francisco, CA 94111.

†Present address: Brookhaven National Laboratory, Upton, NY 11973.

‡Present address: Laboratory for Instructional Technology in Education, Michigan State University, East Lansing, MI 48824.

§Present address: Max-Planck-Institut für Kernphysik, Postfach 10 39 80, D-69029 Heidelberg, Germany.

 
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