Reply to Comment on "Sensitivity of $(d,p)$ reactions to high $n$-$p$ momenta and the consequences for nuclear spectroscopy studies

TL;DR

This paper discusses the high neutron-proton momentum sensitivity of (d,p) reactions, emphasizing the importance of exact three-body solutions and reviewing recent studies that explore this sensitivity within advanced models.

Contribution

It highlights the need for exact three-body calculations beyond leading order to accurately assess (d,p) reaction sensitivities, referencing recent Faddeev equation studies.

Findings

Consistent results between Faddeev calculations and recent Surrey study.

Sensitivity of (d,p) cross sections to high $n$-$p$ momenta confirmed.

Threshold position effects may influence many-body (d,p) reaction analyses.

Abstract

We point out that after presenting our results on high $n$-$p$ momentum sensitivity of the $(d,p)$ cross sections in [Phys. Rev. Lett. 117 162502 (2016)] the last paragraph of our Letter refers to a need of going beyond the leading order of Weinberg state treatment. This task could be achieved by using any method that can provide exact solution of the three-body problem. Deltuva [arXiv:1806.00298] uses Faddeev equations to study the NN-model dependence of the $(d,p)$ cross sections. His results are consistent with a new study performed at Surrey which is undergoing a reviewing process at Physical Review C. Both studies discuss the $n$-$p$ sensitivity within three-body $n+p+A$ models with $NN$-independent $N$-$A$ optical potentials. The sensitivity may reappear in many-body treatment of $(d,p)$ reactions, for example, due to the threshold position dependence.