2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85453The calculated double differential cross sections for 60eV energy, where the cross sections are also maximum, agree with the measured results of Shyn (1992) in a much better way compaired to other theories for such energies.5 pages, 2 figures submitted to J. Phys B: At. Mol. Opt. PhysAtomic PhysicsDouble differential cross sections for ionization of hydrogen atoms by electron impact in hyperspherical partial wave theorytext