Scattering of polarized protons from sup 6 Li at 200 MeV

Journal Article · Fri Jun 01 04:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.2487· OSTI ID:6940051

Glover, C W ^[1]; Foster, C C; Schwandt, P ^[2]; Comfort, J R ^[3]; Rapaport, J; Taddeucci, T N; Wang, D ^[4]; Wagner, G J ^[5]; Seubert, J ^[6]; Carpenter, A W; Carr, J A; Petrovich, F; Philpott, R J; Threapleton, M J ^[7]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (USA) Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (USA)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (USA)
3. Physics Department, Arizona State University, Tempe, Arizona 85287 (USA)
4. Physics Department, Ohio University, Athens, Ohio 45701 (USA)
5. Physikalisches Institut der Universitaet Tuebingen, 7400 Tuebingen (Federal Republic of Germany)
6. Physics Department, Indiana University-Purdue University at Indianapolis, Indianapolis, Indiana 46223 (USA)
7. Physics Department, Florida State University, Tallahassee, Florida 32306 (USA) Supercomputer Computations Research Institute, Florida State University, Tallahassee, Florida 32306 (USA)

New cross section and analyzing power data are presented for elastic and inelastic scattering of 200 MeV protons from {sup 6}Li. The elastic data are well described by a standard, spherical, 12-parameter phenomenological Woods-Saxon (WS) optical potential. Microscopic folding-model optical potentials, obtained by convoluting free and Pauli-corrected effective nucleon-nucleon ({ital NN}) interactions with {sup 6}Li ground-state densities constrained by electromagnetic data, produce satisfactory descriptions of the elastic data. The effects of the spin-spin optical potential, estimated via the distorted wave approximation (DWA), are small but not negligible. The inelastic transitions leading to the 3{sup +},{ital T}=0 state at 2.18 MeV and the 0{sup +},{ital T}=1 state at 3.56 MeV are also examined within the framework of the microscopic folding model using the DWA. Transition potentials are generated by convoluting the two effective {ital NN} interactions considered with target transition densities constrained by weak and electromagnetic data. These are employed in DWA calculations using both folded optical potentials consistent with the transition potentials and the WS optical potential. The self-consistent calculation with the Pauli-corrected interaction provides a good description of the data for the 3{sup +} excitation. The results for the 0{sup +} excitation provide a clear indication that shell model configurations outside the {ital p} shell are important for a complete description of this transition.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6940051
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
BARYON REACTIONS
BEAMS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DISTORTED WAVE THEORY
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
EXPERIMENTAL DATA
HADRON REACTIONS
INELASTIC SCATTERING
INFORMATION
LITHIUM 6 TARGET
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MODELS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
POLARIZED BEAMS
POTENTIALS
PROTON REACTIONS
SCATTERING
SHELL MODELS
TARGETS
WOODS-SAXON POTENTIAL