Minima and maxima in generalized oscillator strengths of Ne, Kr and Xe

The generalized oscillator strengths (GOSs) for the transitions from ground states to the excited states n p 5 ( n + 1)s of Ne ( n = 2), Kr ( n = 4) and Xe ( n = 5) have been calculated as a function of the momentum transfer squared using the random-phase approximation with exchange and using the Hartree-Fock approximation. The positions of the characteristic minima and maxima in the GOSs have received particular attention in the evaluation. They are found to agree excellently with the experimental results. Exchange and correlation effects between the electrons in different subshells are discussed and are found to influence the positions of the minima insignificantly.