Coupled-channels optical-model analysis of n-208Pb scattering at low energies
- 1 November 1993
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
- Vol. 19 (11) , L169-L175
- https://doi.org/10.1088/0954-3899/19/11/004
Abstract
Coupled-channels (cc) analyses of n-208Pb scattering have been performed at 8.5, 9.0, 9.5 and 10 MeV using the cc code ECIS. Elastic and inelastic differential cross-section and total cross-section neutron data were analysed. Central potential strengths were obtained from one-channel analyses of neutron total cross sections; the remaining model parameters were published proton values. We find that all low-lying collective states of 208Pb must be included in the cc calculations, even the low-energy octupole resonance, and that a first-order vibrational model provides a very good description of these data.Keywords
This publication has 19 references indexed in Scilit:
- Unified theory of nuclear reactionsPublished by Elsevier ,2004
- Phase-shift analysis of neutron−208Pb scattering and mean-field studiesPhysical Review C, 1992
- The limitations of the one-channel phenomenological optical modelJournal of Physics G: Nuclear and Particle Physics, 1991
- From scattering to very deeply bound neutrons in 208Pb: Extended and improved moment approachesNuclear Physics A, 1989
- Surface contributions to the complex neutronPb mean field between -20 and +20 MeVPhysical Review C, 1988
- Unified description of the neutronPb mean field between -20 and +165 MeV from the dispersion relation constraintPhysical Review C, 1987
- Giant resonancesProgress in Particle and Nuclear Physics, 1987
- Neutron scattering from 208PbNuclear Physics A, 1978
- On the existence of a surface-peaked term in the real optical potentialJournal of Physics G: Nuclear Physics, 1976
- Calculation of Elastic and Inelastic Proton Scattering with a Generalized Optical ModelPhysical Review B, 1963