STUDY OF THE C$sup 12$ (d,p)C$sup 13$ REACTION MECHANISM: POLARIZATION AND (d,p$gamma$) CORRELATIONS

Journal Article · Thu Aug 15 00:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys.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.131.1632· OSTI ID:4669286

Evans, J E; Kuehner, J A; Almqvist, E

Measurements in the deuteron energy range 5,5 < E/sub d/ < 12 Mev have been made as follows on the reaction C/sup 12/(d,p)C/sup 13*/: (a) differential cross sections for protons to C/sup 13/ ground state and C/sup 13*/ (3.09 Mev) as functions of angle and energy; (b) proton polarization to C/sup 13/ ground state and C/sup 13*/ (3.09 Mev) as functions of energy at 45 deg (lab system) and as functions of angle (10 deg to 120 deg lab) for protons to 3.09-Mev state at E/ sub d// 8.3, 9, and 10 Mev; and (c) proton-gamma correlation measurements with the gamma-ray detector on the normal to the reaction plane for reactions to C/sup 13*/ (3.68 Mev) and C/sup 13*/ (3.85 Mev). In (b) and (c) a doublefocusing magnetic spectrometer selected the proton group in question; the polarization of the selected protons was measured by observing the left-right'' asymmetry from a carbon scatterer. Backgrounds were made negligible in the polarization work by coincidence methods. All the data show fluctuations with deuteron energy throughout the energy range studied; these fluctuations are attributed to compound-nucleus effects which invalidate a distortedwave Born approximation (DWBA) stripping interpretation of results at isolated energies although direct interaction is the predominant mechanism. It is shown by taking average values over a wide energy range ( approximates 4 Mev) that a DWBA stripping description of the direct-interaction part of the reaction almost certainly will require the use of spindependent potentials. (auth)

• Research Organization: Atomic Energy of Canada Ltd., Chalk River, Ont.
• NSA Number: NSA-17-031512
• OSTI ID: 4669286
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 131; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BACKGROUND
CARBON 12
CARBON 13
COINCIDENCE METHODS
COMPOUND NUCLEI
CROSS SECTIONS
DEUTERON BEAMS
DWBA APPROXIMATION
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
GAMMA RADIATION
INTERACTIONS
MAGNETIC FIELDS
MEASURED VALUES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PHYSICS
POLARIZATION
PROTONS
REACTION KINETICS
SPECTROMETERS
SPIN
STRIPPING
VARIATIONS