## Abstract

Differential cross sections and vector analyzing powers for ^{14}N(p, p′) and ^{14}N(p′, d) reactions have been measured at E_{p} = 21.0 MeV to elucidate the reaction mechanism and the effective interaction for the ΔS = ΔT = 1 transition in the ^{14}N(p, p′)^{14}N(2.31 MeV) reaction. The data are analyzed in terms of the finite-range distorted-wave Born approximation (DWBA) which includes direct, knock-on exchange and (p, d) (d, p′) two-step processes. Shell-model wave functions of Cohen and Kurath are used. The data for the first excited state are reasonably well explained by including a two-step process in the calculations. The two-step process explains half of the experimental intensity. Moreover the vector analyzing power cannot be explained without introducing this two-step process. The vector analyzing power of protons leading to the second excited state in ^{14}N is better explained by introducing a macroscopic calculation. The data for the ^{14}N(p, d) ^{13}N (g.s.) reaction are well described by a DWBA calculation using a modified deuteron optical potential. The knock-on exchange contribution is relatively small. The importance of this two-step process for ΔS = ΔT = 1 transitions up to 40 MeV is discussed.

Original language | English |
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Pages (from-to) | 269-286 |

Number of pages | 18 |

Journal | Nuclear Physics, Section A |

Volume | 382 |

Issue number | 2 |

DOIs | |

State | Published - Jul 5 1982 |

## Keywords

- Nuclear reactions