Giant Dipole Resonance Parameters of Ground-State Photoabsorption: Experimental Values with Uncertainties

TL;DR

This paper provides updated and precise values for the parameters of the Isovector Giant Dipole Resonance (GDR) based on recent experimental data, enhancing previous compilations for better nuclear physics modeling.

Contribution

It offers an extended and improved compilation of GDR parameters derived from the latest experimental photoabsorption data up to June 2017.

Findings

Updated GDR parameters with uncertainties

Inclusion of recent experimental data

Enhanced accuracy over previous compilations

Abstract

Updated values and corresponding uncertainties of Isovector Giant Dipole Resonance (GDR) parameters which are obtained by the least-squares fitting of theoretical photoabsorption cross sections to experimental data are presented. The theoretical photoabsorption cross sections are taken as a sum of the components corresponding to the excitation of the GDR and quasideuteron photodisintegration. The current compilation is an extension and improvement of the earlier compilations of Lorentzian parameters for ground-state photoneutron and photoabsorption cross sections and covers experimental data made available up to June 2017.