Elastic and inelastic scattering of 0. 8 GeV polarized protons from /sup 24/Mg and /sup 26/Mg

Journal Article · Sun May 01 04:00:00 EDT 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.37.1987· OSTI ID:5374709

Blanpied, G S; Ritchie, B G; Barlett, M L; Hoffmann, G W; McGill, J A; Milner, E C; Jones, K W; Nanda, S K; de Swiniarski, R

Data on 800 MeV polarized proton scattering on /sup 24/Mg and /sup 26/Mg are presented. Angular distributions and analyzing power data have been extracted from fits to 26 peaks in the spectra for /sup 24/Mg and 23 peaks in /sup 26/Mg. Although there are a variety of shapes for the angular distributions, the analyzing power data for all states are positive and similar in magnitude and seem to be consistent with a two-body operator for the excitation with a spin structure much like that for the free proton-nucleon system. Evidence for a level in /sup 26/Mg at 8.03 MeV with J>4 is presented. Comparison between the observed angular distribution, coupled channels, and distorted wave Born approximation calculations, and the angular distributions of excited states in neighboring nuclei, support the assignment of J/sup ..pi../ = 5/sup -/ or 6/sup +/. Coupled channels calculations for the 0/sup +/, 2/sup +/, 4/sup +/, and 6/sup +/ members of the ground state rotational bands of /sup 24/Mg and /sup 26/Mg are compared to the data. Deformation parameters from distorted wave Born approximation calculations are determined for most of the angular distributions.

• Research Organization: University of South Carolina, Columbia, South Carolina 29208
• OSTI ID: 5374709
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 37:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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651420* -- Nuclear Properties & Reactions
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Moments
Spin
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANALYZING POWER
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
CROSS SECTIONS
DATA
DEFORMATION
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
DWBA
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITED STATES
EXPERIMENTAL DATA
HADRON REACTIONS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNESIUM 24
MAGNESIUM 24 TARGET
MAGNESIUM 26
MAGNESIUM 26 TARGET
MAGNESIUM ISOTOPES
MEV RANGE
MEV RANGE 100-1000
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
POLARIZED BEAMS
PROTON REACTIONS
ROTATIONAL STATES
SCATTERING
SPIN
STABLE ISOTOPES
TARGETS