HIGH FREQUENCY LIMITS OF THE TWO-ELECTRON PHOTOIONIZATION CROSS SECTIONS

R. Krivec, M. Ya. Amusia and V. B. Mandelzweig
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R. Krivec: Department of Theoretical Physics, J. Stefan Institute, PO Box 3000, 1001 Ljubljana, Slovenia
M. Ya. Amusia: Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel;
V. B. Mandelzweig: Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 1161-1166

Abstract: Several cross sections of two-electron processes at high but nonrelativistic photon energies ω are considered, which are expressed solely via the initial state wave function of the ionized two-electron object. The new high precision and locally correct nonvariational wave functions describing the ground and several lowest excited states ofH-, He and helium-like ions are used in calculations of different cross sections in the pure dipole approximation and with account of first order corrections inω/c2, and a number of the cross sections' ratios. The dependencies of all these quantities on the nuclear chargeZand the principal quantum numbern(for1

Keywords: 32.80.Fb; 31.15.Ja (search for similar items in EconPapers)
Date: 2002
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DOI: 10.1142/S0218625X02003457

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