Calculation of three-body nuclear reactions with angular-momentum and parity-dependent optical potentials

TL;DR

This paper develops and applies angular-momentum and parity-dependent nonlocal optical potentials to describe three-body nuclear reactions involving nucleon-${}^{16} ext{O}$, highlighting the importance of nonlocality over angular-momentum or parity dependence.

Contribution

It introduces nonlocal optical potentials with angular-momentum and parity dependence for nucleon-${}^{16} ext{O}$ scattering and demonstrates their application in three-body reaction calculations.

Findings

Nonlocality is crucial for accurate cross section predictions.

Angular-momentum and parity dependence are less significant in the studied reactions.

The developed potentials successfully fit differential cross section data.

Abstract

Angular-momentum or parity-dependent nonlocal optical potentials for nucleon-${}^{16}\mathrm{O}$ scattering able to fit differential cross section data over the whole angular regime are developed and applied to the description of deuteron-${}^{16}\mathrm{O}$ scattering in the framework of three-body Faddeev-type equations for transition operators. Differential cross sections and deuteron analyzing powers for elastic scattering and ${}^{16}\mathrm{O}(d,p){}^{17}\mathrm{O}$ transfer reactions are calculated using a number of local and nonlocal optical potentials and compared with experimental data. Angular-momentum or parity-dependence of the optical potential turns out to be quite irrelevant in the considered three-body reactions while nonlocality is essential for a successful description of the differential cross section data, especially in transfer reactions.