TY - JOUR

T1 - Theoretical modification on semiclassical distorted wave model and its application to the study of spin observables

AU - Ogata, K.

AU - Kawai, M.

AU - Watanabe, Y.

AU - Weili, Sun

AU - Kohno, M.

PY - 1999/11

Y1 - 1999/11

N2 - The semiclassical distorted wave (SCDW) model of nucleon inelastic and charge exchange scattering at intermediate energies is modified to take accurate account of off-the-energy-shell matrix elements of the in-medium N-N interaction and explicit account of the exchange of colliding two nucleons, making use of the G matrix parametrized in coordinate representation. The effects of the modification on the double differential inclusive cross sections are discussed for the cases of (p,p′x) and (p,nx) reactions on 90Zr at 160 MeV. The modification enables the SCDW model to calculate spin observables. The depolarizations in 58Ni(p,p′x) at 80 MeV and 90Zr(p,p′x) and 90Zr(p,nx) at 160 MeV by one-and two-step processes are calculated, and the result for 58Ni(p,p′x) is compared with experimental data. The calculated spin flips in (p,p′x) and (p,nx) on 90Zr are analyzed in terms of the effects of in-medium modification of the N-N interaction and the contributions of individual components of the effective interaction.

AB - The semiclassical distorted wave (SCDW) model of nucleon inelastic and charge exchange scattering at intermediate energies is modified to take accurate account of off-the-energy-shell matrix elements of the in-medium N-N interaction and explicit account of the exchange of colliding two nucleons, making use of the G matrix parametrized in coordinate representation. The effects of the modification on the double differential inclusive cross sections are discussed for the cases of (p,p′x) and (p,nx) reactions on 90Zr at 160 MeV. The modification enables the SCDW model to calculate spin observables. The depolarizations in 58Ni(p,p′x) at 80 MeV and 90Zr(p,p′x) and 90Zr(p,nx) at 160 MeV by one-and two-step processes are calculated, and the result for 58Ni(p,p′x) is compared with experimental data. The calculated spin flips in (p,p′x) and (p,nx) on 90Zr are analyzed in terms of the effects of in-medium modification of the N-N interaction and the contributions of individual components of the effective interaction.

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M3 - Article

AN - SCOPUS:13044279485

VL - 60

SP - 546051

EP - 5460511

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 5

M1 - 054605

ER -