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Author Weisel, G. J. ♦ Tornow, W. ♦ Howell, C. R. ♦ Felsher, P. D. ♦ AlOhali, M. ♦ Roberts, M. L. ♦ Das, R. K. ♦ Walter, R. L. ♦ Mertens, G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ BISMUTH 209 TARGET ♦ NEUTRON REACTIONS ♦ OPTICAL MODELS ♦ LEAD 208 TARGET ♦ POLARIZATION-ASYMMETRY RATIO ♦ MEV RANGE 01-10 ♦ ELASTIC SCATTERING ♦ MEV RANGE 10-100 ♦ PARTICLE-HOLE MODEL ♦ BOUND STATE ♦ BOUND STATES
Abstract High-accuracy measurements of {ital A}{sub {ital y}}({theta}) data for elastic scattering for {ital n}+{sup 209}Bi have been performed at 6 and 9 MeV. The data are incorporated into a large database of {sigma}({theta}), {ital A}{sub {ital y}}({theta}), and {sigma}{sub {ital T}} for {ital n}+{sup 209}Bi covering the energy range 1.0{endash}80 MeV. A complementary database is constructed for {ital n}+{sup 208}Pb and a dispersive optical-model analysis is performed for both scattering systems while constraining many of the parameters to be identical for both systems. A good representation of both databases is obtained with conventional geometry and spin-orbit parameters. The {sup 208}Pb model predicts quite well the measured energies of valence single-particle and single-hole bound states. Occupation probabilities and spectroscopic factors for the same bound states are also calculated. Finally, a fully constrained model is presented in which the only differences between the {ital n}+{sup 208}Pb and the {ital n}+{sup 209}Bi systems are the Fermi energy and the isospin dependence in the real volume potential. {copyright} {ital 1996 The American Physical Society.}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-11-01
Publisher Department Duke University
Publisher Place United States
Journal Physical Review, C
Volume Number 54
Issue Number 5
Organization Duke University


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