Quantum-mechanical calculation of quasi-bound energies and resonance widths for the helium molecular dication He 22+

Abstract

A real space amplitude method for the calculation of the quasi-bound resonance energies and widths for a single-channel one-dimensional potential is described and applied to the vibrational quasi-bound states of 3He 4He 2 2+ and 4He 2 2+, which have been detected recently, using the Coulomb explosion technique.