Semiclassical Distorted Wave Model Analysis of Backward Proton Emission from $(p,p^{\prime}x)$ Reactions at Intermediate Energies

Details Semiclassical Distorted Wave Model Analysis of Backward Proton Emission from $(p,p^{\prime}x)$ Reactions at Intermediate Energies Semiclassical Distorted Wave Model Analysis of Backward Proton Emission from $(p,p^{\prime}x)$ Reactions at Intermediate Energies

2003-07-28

arxiv.org/abs/nucl-th/0307108v1

Physics

Nuclear Physics

Nuclear Theory

13 pages, 7 figures, Talk at 22-nd International Workshop on Nuclear Theory, Rila Mountain, Bulgaria, June 16-21, 2003

Scientific paper

A semiclassical distorted wave (SCDW) model with Wigner transform of one-body density matrix is presented for multistep direct $(p,p^{\prime}x)$ reactions to the continuum. The model uses Wigner distribution functions obtained in methods which include nucleon-nucleon correlations to a different extent, as well as Woods-Saxon (WS) single-particle wave function. The higher momentum components of target nucleons that play a crucial role in reproducing the high-energy part of the backward proton spectra are properly taken into account. This SCDW model is applied to analyses of multistep direct processes in $^{12}$C$(p,p^{\prime}x)$, $^{40}$Ca$(p,p^{\prime}x)$ and $^{90}$Zr$(p,p^{\prime}x)$ in the incident energy range of 150--392 MeV. The double differential cross sections are calculated up to three-step processes. The calculated angular distributions are in good agreement with the experimental data, in particular at backward angles where the previous SCDW calculations with the WS single-particle wave function showed large underestimation. It is found that the result with the Wigner distribution function based on the coherent density fluctuation model provides overall better agreement with the experimental data over the whole emission energies.

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