/sup 27/Al(p,. gamma. )/sup 28/Si and /sup 27/Al(/sup 3/He,d)/sup 28/Si to the stretched 11. 58-MeV (6/sup -/,0) and 14. 36-MeV (6/sup -/,1) levels
We have studied the E/sub x/ = 14.36 MeV 6/sup -/,T = 1 resonance in the /sup 27/Al(p,..gamma..) reaction with the result that GAMMA/sub Po/ = GAMMA = 4.0 +- 0.2 keV, from which we infer a (d/sub 5/2//sup -1/,f/sub 7/2/) parentage delta/sub 1//sup 2/ approx. = 0.7. We also obtain B(M1) = 2.8 +- 0.4 nm/sup 2/ or 0.19 +- 0.03 of the pure single particle (d/sub 5/2//sup -1/,f/sub 7/2/) value for the 6/sup -/,1 ..-->.. 6/sup -/,0 M1 ..gamma..-decay. /sup 27/Al (/sup 3/He,d) results for stripping to the 6/sup -/,1 and the 6/sup -/,0 (11.58 MeV) levels indicate S/sub o/(p)/S/sub 1/(p) = 1.1 +- 0.1 and hence that the 6/sup -/,0 level has a (d/sub 5/2//sup -1/,f/sub 7/2/) parentage comparable to the 6/sup -/,1 level, contrary to inferences based on inelastic proton and pion scattering data. We discuss the hindrance of the M1 decay and the previously measured inelastic electron, proton and pion excitation strengths relative to the expectations of a 1 particle-1 hole model.
- Research Organization:
- Washington Univ., Seattle (USA). Dept. of Physics; Rijksuniversiteit Groningen (Netherlands). Kernfysisch Versneller Inst.; Osaka Univ., Toyonaka (Japan). Dept. of Physics; Osaka Univ., Suita (Japan). Research Center for Nuclear Physics
- DOE Contract Number:
- AC06-81ER40048
- OSTI ID:
- 6555806
- Report Number(s):
- DOE/ER/40048-27-L2; ON: DE83004106
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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ALUMINIUM 27 TARGET
PROTON REACTIONS
HELIUM 3 REACTIONS
STRIPPING
CAPTURE
SILICON 28
ENERGY LEVELS
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DIFFERENTIAL CROSS SECTIONS
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
GAMMA RADIATION
LEVEL WIDTHS
M1-TRANSITIONS
RESONANCE
BARYON REACTIONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIRECT REACTIONS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FUNCTIONS
HADRON REACTIONS
INFORMATION
IONIZING RADIATIONS
ISOTOPES
LIGHT NUCLEI
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
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