Compound-nucleus contributions to {sup 6}Li+{sup 12}C scattering

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.3273· OSTI ID:397722

Gay, D L ^[1]; Bartosz, E E; Cathers, P D; Caussyn, D D; Drummer, T L; Kemper, K W; Kerr, P L; Robson, D ^[2]

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1. Department of Natural Sciences, University of North Florida, Jacksonville, Florida 32224-2645 (United States)
2. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

Statistical compound-nucleus contributions to enhanced back-angle cross sections for {sup 6}Li + {sup 12}C elastic scattering and for inelastic scattering to the channels, {sup 6}Li(3{sup +}, 2.18 MeV) + {sup 12}C(g.s.) and {sup 6}Li(g.s.) + {sup 12}C(2{sup +}, 4.44 MeV), are studied. Differential cross sections and vector analyzing powers in the range {Theta}{sub c.m.}{approx_equal}130{degree}{endash}165{degree} have been measured at {ital E}{sub c.m.} = 20 MeV by detecting recoil {sup 12}C nuclei from {sup 6}Li{searrow} elastic scattering and inelastic scattering to the {sup 6}Li(3{sup +}, 2.18 MeV) state. Adding a statistical compound-nucleus contribution is shown in general to reduce the magnitude, and to leave unaffected the sign, of theoretical calculations of vector analyzing powers. Analysis, including Hauser-Feshbach calculations, of the above data along with previous data indicates that compound-nucleus contributions are unimportant in the elastic and inelastic {sup 6}Li(2.18 MeV) scattering channels, and are insufficient to resolve discrepancies between current coupled-channels calculations and large-angle data for inelastic {sup 12}C(4.44 MeV) scattering. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 397722
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 54; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CARBON 12 TARGET
COMPOUND NUCLEI
COUPLED CHANNEL THEORY
CROSS SECTIONS
ELASTIC SCATTERING
INELASTIC SCATTERING
LITHIUM 6 REACTIONS
POLARIZATION-ASYMMETRY RATIO