科研之友
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摘要
In the framework of relativistic mean field (RMF) theory, we have calculated the density distribution of protons and neutrons for (40,42,44,48)Ca with NL3 and G2 parameter sets. The microscopic proton-nucleus optical potentials for p + (40,42,44,48)Ca systems are evaluated from the Dirac nucleon-nucleon scattering amplitude and the density of the target nucleus using relativistic-Love-Franey and McNeil-Ray-Wallace parametrizations. We have estimated the scattering observables, such as the elastic differential scattering cross section, analyzing power and the spin observables with the relativistic impulse approximation (RIA). The results have been compared with the experimental data for a few selective cases and we find that the use of density as well as the scattering matrix parametrizations are crucial for the theoretical prediction.
- 出版日期2010-12-9
