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Elastic scattering of protons by /sup 16/O, /sup 40/Ca and /sup 208/Pb at 200, 500 and 800 MeV: 2, Effects of vacuum polarization and Pauli blocking corrections

Technical Report ·
OSTI ID:5544453
Dirac impulse approximation predictions for cross sections and spin observables in elastic proton scattering by /sup 40/Ca and /sup 208/Pb at energies of 200, 500 and 800 MeV are presented. The analysis is based on complete sets of Lorentz invariant NN amplitudes determined from a meson exchange model of the nuclear force. Effects of relativistic nuclear densities are explored including estimates of the vacuum polarization corrections based on quantum hadrodynamics. Effects of Pauli blocking are considered using the approximations of Murdock and Horowitz. A good description of the experimental data is obtained over a broad energy range and over a wide variation of nuclear size based on the generalized impulse approximation. Vacuum polarization corrections are found to enhance the agreement between theory and experiment. 18 refs., 8 figs.
Research Organization:
Maryland Univ., College Park (USA). Dept. of Physics and Astronomy; Rijksuniversiteit Utrecht (Netherlands). Inst. voor Theoretische Fysica
DOE Contract Number:
FG05-87ER40322
OSTI ID:
5544453
Report Number(s):
DOE/ER/40322-014; ON: DE88005763
Country of Publication:
United States
Language:
English