Abstract.
Based on an α-particle model of 12C, an optical potential for intermediate-energy proton- 12C scattering is presented in the framework of the KMT theory. The parameterized proton- 4He amplitude, the required basic input for constructing the optical potential, is obtained by fitting the proton- 4He scattering data. The differential cross-sections and analyzing powers of the proton- 12C elastic scattering at incident energies ranging from 0.2 to 1.0GeV have been calculated by using the obtained optical potential. The main features of the measured angular distributions of the cross-section and the analyzing power can be satisfactorily described. The proton- 12C total cross-sections have also been calculated, and the results are in good agreement with the experimental data at energies below 0.6GeV but underestimate the data about 6% at higher energies.
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W. Nazarewicz
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Yang, YX., Zhou, JL. & Li, QR. Optical potential analysis of proton elastic scattering from 12C based on the α-particle model. Eur. Phys. J. A 32, 35–41 (2007). https://doi.org/10.1140/epja/i2007-10365-x
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DOI: https://doi.org/10.1140/epja/i2007-10365-x