Effects of single-particle overlap function on the 16O(p,2p)15N reaction

Abstract

Introduction: The proton-induced nucleon knockout reactions have been widely used in recent years to explore the single-particle properties of various nuclei. In this study, we examine the effects of the single-particle overlap function on the cross sections and spectroscopic factors of the ¹⁶O(p,2p)¹⁵N reactions.

Methods: These effects are extensively studied through an analysis of the cross sections of the ¹⁶O(p,2p)¹⁵N reaction at incident energies of 392 and 505 MeV. The evaluation is carried out within the framework of the distorted-wave impulse approximation (DWIA), utilizing overlap function inputs from different structure calculations and potential prescriptions.

Results: The analysis reveals that, for the ¹⁶O(p,2p)¹⁵N reaction and the chosen incident energies, the ambiguities arising from different selections of the overlap function are small but non-negligible.

Conclusion: Given the existence of these theoretical uncertainties, it is important that careful and consistent choices of single-particle overlap functions are made in systematics knockout reactions analyses to ensure the extraction of reliable structure information.