Proton resonances in /sup 28/Si from E/sub x/ = 12. 5 to 13. 4 MeV

Journal Article · Tue May 01 04:00:00 EDT 1984 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.29.1656· OSTI ID:6738863

Nelson, R O; Bilpuch, E G; Westerfeldt, C R; Mitchell, G E

The /sup 27/Al(p,p) and (p,..cap alpha../sub 0/) differential cross sections were measured in the range E/sub p/ = 0.92 to 1.85 MeV with an overall resolution of 350 to 400 eV (full width at half maximum.) Resonance parameters were extracted for 31 resonances with a multilevel, multichannel, R-matrix analysis code; these parameters include resonance energy, total angular momentum, partial elastic and inelastic widths, and channel spin and orbital angular momentum mixing ratios. Eleven analog states were identified, and the Coulomb displacement energies and spectroscopic factors were calculated. For the 2/sup +/ resonance at E/sub p/ = 1.37 MeV the entrance orbital angular momentum mixing ratio was determined. The relevance of this mixing ratio to a previous test of time reversal invariance is discussed.

• Research Organization: Duke University, Durham, North Carolina 27706 and Triangle Universities Nuclear Laboratory, Duke Station, Durham, North Carolina 27706
• OSTI ID: 6738863
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 29:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ALUMINIUM 27 TARGET
ANGULAR MOMENTUM
BARYON REACTIONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
INELASTIC SCATTERING
INFORMATION
INVARIANCE PRINCIPLES
ISOBARIC ANALOGS
ISOTOPES
LIGHT NUCLEI
MATRICES
MEV RANGE
MEV RANGE 01-10
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
PROTON REACTIONS
R MATRIX
RESONANCE SCATTERING
SCATTERING
SILICON 28
SILICON ISOTOPES
SPECTROSCOPIC FACTORS
SPIN
STABLE ISOTOPES
T INVARIANCE
TARGETS