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Author Crespo, R. ♦ Tostevin, J. A. ♦ Thompson, I. J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ LITHIUM 9 TARGET ♦ PROTON REACTIONS ♦ LITHIUM 11 ♦ ELASTIC SCATTERING ♦ OPTICAL MODELS ♦ MULTIPLE SCATTERING ♦ NUCLEON-NUCLEON INTERACTIONS ♦ HELIUM 8 ♦ CROSS SECTIONS ♦ POTENTIALS ♦ EXPANSION
Abstract The optical potential and observables for proton-{sup 9,11}Li elastic scattering are calculated microscopically using the single scattering approximation to the Kerman-McManus-Thaler multiple scattering expansion. The importance of the central and spin-orbit terms of the optical potential, and of the core and halo nucleon contributions, is clarified in terms of the momentum space behaviors of the nucleon-nucleon amplitudes and relevant density distributions. Calculations for the {sup 9}Li and {sup 11}Li systems at 60 and 62 MeV/nucleon, respectively, are compared with the available experimental data and with calculations and data for the proton-{sup 8}He system at similar energy. Three-body models of {sup 11}Li are used. The effects of the halo distribution in {sup 11}Li are clearly manifest in the elastic cross section but there are small differences between observables for structure models with realistic two-neutron asymptotic behaviors. Calculations suggest that the {sup 9}Li core structure is not realistically described by simple models. {copyright} {ital 1996 The American Physical Society.}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-10-01
Publisher Place United States
Journal Physical Review, C
Volume Number 54
Issue Number 4


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