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Phys. Rev. C 61, 052801(R) (2000) [5 pages]

Intermediate-energy Coulomb excitation of 19Ne

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G. Hackman1,2, Sam M. Austin2,3, T. Glasmacher2,3, T. Aumann2,*, B. A. Brown2,3, R. W. Ibbotson2,†, K. Miller2,3, B. Pritychenko2,3, L. A. Riley4, B. Roeder2, and E. Spears2,3
1Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045
2National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
4Department of Physics and Astronomy, Earlham College, Richmond, Indiana 47374

Received 12 January 2000; published 5 April 2000

Transition rates from the ground to selected states in 19Ne have been measured by their gamma yield following intermediate-energy radioactive ion beam Coulomb excitation. These are compared to corresponding transitions in 19F and to shell model calculations. An upper limit on the cross section of the 4.033 MeV state places a limit on the transition rate and hence on total electromagnetic decay width Γγ of this state, which is of astrophysical interest. Combining the results with an upper limit on the lifetime of this state and shell model calculations gives an estimate of its width.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.61.052801
DOI:
10.1103/PhysRevC.61.052801
PACS:
26.50.+x, 21.10.Ky, 25.70.De, 27.20.+n

*Present address: GSI, Plankstrasse 1, D-64921 Darmstadt, Germany.

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

 
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