Giant dipole resonance parameters with uncertainties from photonuclear cross sections

Updated values and corresponding uncertainties of isovector giant dipole resonance (IVGDR or GDR) model parameters are presented that are obtained by the least-squares fitting of theoretical photoabsorption cross sections to experimental data. The theoretical photoabsorption cross section is taken as a sum of the components corresponding to excitation of the GDR and quasideuteron contribution to the experimental photoabsorption cross section. The present compilation covers experimental data as of January 2010.

► Experimental σσ (γγ, abs) or a sum of partial cross sections are taken as input to the fitting. ► Data include contributions from photoproton reactions. ► Standard (SLO) or modified (SMLO) Lorentzian approaches are used for formulating GDR models. ► Spherical or axially deformed nuclear shapes are used in GDR least-squares fit. ► Values and uncertainties of the SLO and SMLO GDR model parameters are tabulated.