Dirac Analyses of Proton Inelastic Scatterings from an s-d Shell Nucleus 20Ne

다국어 초록 (Multilingual Abstract)

Proton inelastic scatterings from an s-d shell nucleus 20Ne are analyzed using an optical potentialmodel in the Dirac coupled channel formalism. Lorentz covariant scalar and vector optical potentialsare included in the calculation, and the first-order rotational collective model is used to obtain thetransition potentials for the low-lying excited collective states of the ground state rotational bandof the nucleus. Dirac coupled channel equations are solved phenomenologically to reproduce thedifferential cross section and analyzing power data by varying the optical potential and deformationparameters. The multistep process via coupled channels turns out to be important in describingthe 4+ excited state of the ground state rotational band. The calculated deformation parameters ofthe excited states are compared with those of nonrelativistic calculations based on the Schr¨odingerequations. The Dirac equations are reduced to obtain Schr¨odinger-like second-order differentialequations, and the obtained effective central and spin-orbit optical potentials are analyzed andcompared with those of other s-d shell nuclei.

참고문헌 (Reference)

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