Improved description of $^{34,36,46}$Ar(p,d) transfer reactions

TL;DR

This paper presents an improved theoretical analysis of neutron transfer reactions involving argon isotopes, incorporating finite range models and three-body calculations to refine spectroscopic factors and examine neutron-proton asymmetry effects.

Contribution

It introduces an enhanced finite range adiabatic model and compares it with previous approaches, also estimating reaction theory errors using three-body Faddeev calculations.

Findings

Spectroscopic factors support neutron-proton asymmetry dependence from knockout data.

Finite range adiabatic model improves reaction description.

Estimated errors from optical potentials are quantified.

Abstract

An improved description of single neutron stripping from $^{34,36,46}$Ar beams at 33 MeV/nucleon by a hydrogen target is presented and the dependence on the neutron-proton asymmetry of the spectroscopic factors is further investigated. A finite range adiabatic model is used in the analysis and compared to previous zero range and local energy approximations. Full three-body Faddeev calculations are performed to estimate the error in the reaction theory. In addition, errors from the optical potentials are also evaluated. From our new spectroscopic factors extracted from transfer, it is possible to corroborate the neutron-proton asymmetry dependence reported from knockout measurements.