Angular distribution and spin polarization of Auger transitions of the Ne, Ar, Kr and Xe excited states

Abstract

The angular distribution parameters α2 and spin-polarization parameters β2 of the Auger transitions are presented for transitions in photoexcited Ne*, Ar*, Kr* and Xe* atoms with open shells. Matrix elements are calculated by the multiconfiguration Dirac–Fock method. The wave functions of the initial and final states of the Auger transitions are calculated with allowance for relaxation effects. The one-electron wavefunctions of the continuous spectrum for an Auger electron are obtained using the single-configuration Fock–Dirac method. The matrix elements are calculated by using intermediate coupling. The resulting values of the energy positions, angular distribution parameters are compared with experimental data and other theoretical results.

Photoionization and electron-impact ionization of Yb atoms from an excited aligned state

“…The normalized solution of equation ( 8) can be obtained by joining an arbitrary unnormalized solution Pε (r) = NP ε (r) and its derivative P εl (r), which are regular at the origin, with the asymptotic function ( 9) (for details see, for example, [13] and references therein). However, to provide a high accuracy, this joining should be accomplished at a large distance.…”

Calculation by plane wave Born approximation of the electron-impact ionization of Ne, Ar, Kr and Xe

“…The radial parts P εκ (r ) and Q εκ (r ) of the continuum wavefunction ψ εκµ (r) were defined as solutions of Dirac-Fock equations (for details see [10])…”