Shell-model analysis of high-resolution data for elastic and inelastic electron scattering on ¹⁹F

A comprehensive theoretical and experimental investigation of electron scattering on ¹⁹F is presented. Theoretical procedures for calculating the various components of electron scattering form factors from multiparticle shell-model wave functions are summarized. These procedures are used to compare shell-model predictions with data from electron scattering on ¹⁹F. For the positive-parity states of ¹⁹F we use 1s0d shell-model wave functions obtained with a new ‘‘universal’’ Hamiltonian and for the negative-parity states we use 0p-1s0d shell-model wave functions based on the cross-shell Hamiltonian of Millener and Kurath. The comparisons are made with measured longitudinal and transverse form factors for momentum transfers up to 2.4 fm^-1 which are extracted from experimental data obtained with electron energies from 78 to 340 MeV, and angles of 45°, 90°, and 160°. The energy resolution was 25–50 keV and most of the known levels below 8 MeV in excitation were resolved and compared with theory.