### Abstract

The double-differential cross sections and analyzing powers over an angular range of 30° ≤ θ_{lab} ≤ 75°, and the induced polarizations P and polarization transfer values D_{NN} at 30° and 40° for the ^{40}Ca(p,n) reaction are measured at a bombarding energy of 345 MeV. The data are compared with theoretical calculations in a semiclassical distorted wave (SCDW) model employing through three- and two-step contributions for cross sections and polarization observables, respectively. At forward angles, the SCDW calculations reproduce the observed cross sections fairly well around the quasielastic peak. The one-step contribution is dominant at θ_{lab} = 30°, while the two- and three-step contributions become more important with increasing reaction angle. At backward angles the calculations underestimate the cross sections in the whole region, which indicates the significance of higher-step contributions. The D_{NN} values, which are sensitive to the effective nucleon-nucleon interaction in the nuclear medium, are close to those calculated with the G-matrix interaction parametrized by the Melbourne group.

Original language | English |
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Article number | 034615 |

Pages (from-to) | 346151-346158 |

Number of pages | 8 |

Journal | Physical Review C - Nuclear Physics |

Volume | 65 |

Issue number | 3 |

DOIs | |

Publication status | Published - Mar 2002 |

Externally published | Yes |

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### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

### Cite this

^{40}Ca(p,n) reaction at 345 MeV and multistep contributions in the continuum.

*Physical Review C - Nuclear Physics*,

*65*(3), 346151-346158. [034615]. https://doi.org/10.1103/PhysRevC.65.034615