Towards a Microscopic Reaction Description Based on Energy Density Functionals [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 2011.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- PDF-file: 15 pages; size: 0.3 Mbytes
- Additional Creators:
- Lawrence Berkeley National Laboratory
United States. Department of Energy
United States. Department of Energy. Office of Scientific and Technical Information - Access Online:
- www.osti.gov
- Summary:
- A microscopic calculation of reaction cross sections for nucleon-nucleus scattering has been performed by explicitly coupling the elastic channel to all particle-hole excitations in the target and one-nucleon pickup channels. The particle-hole states may be regarded as doorway states through which the flux flows to more complicated configurations, and subsequently to long-lived compound nucleus resonances. Target excitations for {sup 40,48}Ca, ⁵⁸Ni, ⁹°Zr and ¹⁴⁴Sm were described in a random-phase framework using a Skyrme functional. Reaction cross sections obtained agree very well with experimental data and predictions of a state-of-the-art fitted optical potential. Couplings between inelastic states were found to be negligible, while the pickup channels contribute significantly. The effect of resonances from higher-order channels was assessed. Elastic angular distributions were also calculated within the same method, achieving good agreement with experimental data. For the first time observed absorptions are completely accounted for by explicit channel coupling, for incident energies between 10 and 70 MeV, with consistent angular distribution results.
- Subject(s):
- Note:
- Published through SciTech Connect.
09/26/2011.
"llnl-jrnl-501067"
Physical Review, C (Nuclear Physics) 84 6 ISSN 0556-2813; PRVCAN FT
Escher, J E; Thompson, I J; Nobre, G A; DIetrich, F S; Dupuis, M; Terasaki, J; Engel, J. - Funding Information:
- W-7405-ENG-48
View MARC record | catkey: 14668093