Transfer reactions and the dispersive optical-model

TL;DR

This paper demonstrates that the dispersive optical-model effectively describes transfer reactions, providing improved angular distribution fits and more consistent spectroscopic factors compared to standard models.

Contribution

The study applies the dispersive optical-model to transfer reactions, showing its advantages over standard global potentials in describing data and constraining overlap functions.

Findings

Dispersive optical-model describes angular distributions as well or better than global potentials.

Spectroscopic factors from the dispersive model are lower and less energy-dependent.

Results align more closely with $(e,e'p)$ measurements.

Abstract

The dispersive optical-model is applied to transfer reactions. A systematic study of $(d,p)$ reactions on closed-shell nuclei using the finite-range adiabatic reaction model is performed at several beam energies and results are compared to data as well as to predictions using a standard global optical-potential. Overall, we find that the dispersive optical-model is able to describe the angular distributions as well as or better than the global parameterization. In addition, it also constrains the overlap function. Spectroscopic factors extracted using the dispersive optical-model are generally lower than those using standard parameters, exhibit a reduced dependence on beam energy, and are more in line with results obtained from $(e,e'p)$ measurements.