Benchmarking Faddeev and transfer-to-the-continuum calculations for (p, pN ) reactions

TL;DR

This paper benchmarks Faddeev and Transfer to the Continuum calculations for (p, pN) reactions, showing good agreement in predicting observables across various energies and conditions, thus validating their use in nuclear physics experiments.

Contribution

It provides a systematic comparison of Faddeev and Transfer to the Continuum formalisms for (p, pN) reactions at intermediate energies, highlighting their consistency and reliability.

Findings

Good agreement within 10% between the methods.

Consistent and realistic input potentials are crucial.

Applicable to inverse-kinematics experiments with exotic nuclei.

Abstract

Nucleon-knockout reactions on proton targets (p, pN ) have experienced a renewed interest due to the availability of inverse-kinematics experiment with exotic nuclei. Various theoretical descriptions have been used to describe these reactions, such as the Distorted-Wave Impulse Approximation (DWIA), the Faddeev-type formalism and the Transfer to the Continuum method. Our goal is to benchmark the observables computed with the Faddeev and Transfer to the Continuum formalisms in the intermediate energy regime relevant for the experimental (p, pn) and (p, 2p) studies. In this paper, we analyze the 11 Be(p,pn)10Be reaction for different beam energies, binding energies and orbital quantum numbers with both formalisms to assess their agreement for different observables. We obtain a good agreement in all cases considered, within 10%, when the input potentials are taken consistently and realistically.