Si$sup 23$(p,p'$gamma$) ANGULAR CORRELATIONS

Journal Article · Wed Mar 01 04:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.121.1504· OSTI ID:4055640

Bowsher, H F; Dell, G F; Hausman, H J

Angular correlations have been measured between protons scattered inelastically from a Si/sup 28/ target and the decay gamma rays from the 1.78- Mev first excited state of the target nuclei. The incident proton bombarding energy varied between 5.8 Mev and 7.0 Mev. The angular correlation experiments were performed for proton detector angles of 37 deg , 60 deg , 90 deg , and 120 deg . The measured angular correlation functions are all of the form A+ B sin/ sup 2/(2( theta - theta /sub 0/)), where theta /sub 0/ is the axis of symmetry. When the incident proton beam energy was 7.0 Mev the symmetry direction was found to be 90 deg (center of mass), independent of the proton detector angle. These results agree with the prediction of a compound-nucleus theory. This suggests the existence of a strong compound nucleus resonance in P/sup 29/ at an excitation energy of 9.6 Mev. For lower proton beam energies, the symmetry direction theta /sub 0/ shifts with a change in the proton detector angle or a change in the proton beam energy. These results are consistent with a direct- reaction mechanism. (auth)

• Research Organization: Ohio State Univ., Columbus
• NSA Number: NSA-15-013738
• OSTI ID: 4055640
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 121; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
COMPOUND NUCLEI
CROSS SECTIONS
DECAY
DIRECT REACTIONS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
GAMMA RADIATION
INELASTIC SCATTERING
INTERACTIONS
MEASURED VALUES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR THEORY
PHOSPHORUS 29
PHYSICS
PROTON BEAMS
PROTONS
RADIATION DETECTORS
RESONANCE
SCATTERING
SILICON 28
TARGETS