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Phys. Rev. C 59, R2975–R2978 (1999)

Proton emission from the closed neutron shell nucleus 155Ta

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J. Uusitalo1, C. N. Davids1, P. J. Woods2, D. Seweryniak1,3, A. A. Sonzogni1, J. C. Batchelder4, C. R. Bingham5, T. Davinson2, J. deBoer6, D. J. Henderson1, H. J. Maier6, J. J. Ressler3, R. Slinger2, and W. B. Walters3
1Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
2University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
3Department of Chemistry, University of Maryland, College Park, Maryland 20742
4UNIRIB, Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831
5Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
6Sektion Physik, University of Munich, Am Coulombwall 1, D-85748 Garching, Germany

Received 2 March 1999; published in the issue dated June 1999

Proton radioactivity from the closed neutron shell nucleus 155Ta has been observed. It was produced via the p4n fusion evaporation channel using a 58Ni beam on a 102Pd target. The measured decay properties are Ep=1765(10) keV and t1/2=12-3+4 μs. Spin and parity Jπ=11/2- and a spectroscopic factor Spexp=0.58-0.15+0.20 characterize the decaying state.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.59.R2975
DOI:
10.1103/PhysRevC.59.R2975
PACS:
23.50.+z, 21.10.Tg, 27.70.+q, 21.10.Dr
 
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