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Phys. Rev. C 71, 021302(R) (2005) [4 pages]

First study of the level structure of the r-process nucleus 83Ge

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J. S. Thomas1, D. W. Bardayan2, J. C. Blackmon2, J. A. Cizewski1, U. Greife3, C. J. Gross2, M. S. Johnson1,4, K. L. Jones1, R. L. Kozub5, J. F. Liang2, R. J. Livesay3, Z. Ma6, B. H. Moazen5, C. D. Nesaraja2,6, D. Shapira2, and M. S. Smith2
1Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903
2Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
3Department of Physics, Colorado School of Mines, Golden, Colorado 80401
4Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831
5Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505
6Physics Department, University of Tennessee, Knoxville, Tennessee 37996

Received 1 November 2004; published 25 February 2005

The first (d,p) neutron transfer reaction on a neutron-rich r-process nucleus has been measured at the Holifield Radioactive Ion Beam Facility. The 2H(82Ge,p)83Ge reaction was studied by bombarding a 430-μg/cm2 (CD2)n target with a 330-MeV beam of radioactive 82Ge. The reaction Q value (Q=1.47±0.02 stat. ±0.07 sys. MeV) has been measured leading to the first determination of the mass of the N=51 nucleus 83Ge. Excitation energies, angular distributions, and spectroscopic factors for the first two states of 83Ge have also been determined.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.71.021302
DOI:
10.1103/PhysRevC.71.021302
PACS:
25.60.Je, 21.10.Dr, 21.10.Pc, 26.50.+x
 
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