Proton inelastic scattering to continuum studied with antisymmetrized molecular dynamics

Details Proton inelastic scattering to continuum studied with antisymmetrized molecular dynamics Proton inelastic scattering to continuum studied with antisymmetrized molecular dynamics

1995-04-28

arxiv.org/abs/nucl-th/9504033v1

Phys.Rev.C52:316-325,1995

Physics

Nuclear Physics

Nuclear Theory

16 pages, 7 Postscript figures

Scientific paper

10.1103/PhysRevC.52.316

Intermediate energy (p,p$'$x) reaction is studied with antisymmetrized molecular dynamics (AMD) in the cases of $^{58}$Ni target with $E_p = 120$ MeV and $^{12}$C target with $E_p = $ 200 and 90 MeV. Angular distributions for various $E_{p'}$ energies are shown to be reproduced well without any adjustable parameter, which shows the reliability and usefulness of AMD in describing light-ion reactions. Detailed analyses of the calculations are made in the case of $^{58}$Ni target and following results are obtained: Two-step contributions are found to be dominant in some large angle region and to be indispensable for the reproduction of data. Furthermore the reproduction of data in the large angle region $\theta \agt 120^\circ$ for $E_{p'}$ = 100 MeV is shown to be due to three-step contributions. Angular distributions for $E_{p'} \agt$ 40 MeV are found to be insensitive to the choice of different in-medium nucleon-nucleon cross sections $\sigma_{NN}$ and the reason of this insensitivity is discussed in detail. On the other hand, the total reaction cross section and the cross section of evaporated protons are found to be sensitive to $\sigma_{NN}$. In the course of the analyses of the calculations, comparison is made with the distorted wave approach.

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