Osnabrück 2002 – wissenschaftliches Programm

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MO: Molekülphysik

MO 12: Photoionisation I (gemeinsam mit FV Atomphysik)

MO 12.1: Vortrag

Mittwoch, 6. März 2002, 16:30–16:45, HS 15/E10

Autoionizing Rydberg series n_cp_1/2⁵nl′[K′]_J (l′ = 0 - 5) of Ne, Ar, Kr and Xe: general trends for the resonance widths. — •I D Petrov^1,2, V L Sukhorukov^1,2, and H Hotop¹ — ¹Fachbereich Physik, Universität Kaiserslautern, D-67653 Kaiserslautern, Germany — ²Rostov State University of Transport Communications, 344038 Rostov-on-Don, Russia

With the aim to elucidate general trends for the autoionizing decay of Rydberg series Rg (n_cp_1/2⁵nl′[K′ = l′±1/2]_J ) (Rg = Ne, Ar, Kr, and Xe; n_c = 2 - 5), converging to the fine structure-excited ionization limit Rg⁺ (n_cp_1/2^5 2P_1/2), we have carried out calculations of the resonance widths for all l′[K′]_J series with l′ = 0 - 5 within the single-electron Pauli-Fock approach [1]. The l′- dependence of the reduced widths Γ_r = n^*3Γ_n (n^* = n − µ_l), which is independent of n at large n, is obtained, and the dominant decay paths are characterized. Based on these findings, expressions for a ’generalized’ reduced width Γ_gr are presented for the l′[l′±1/2]_J resonance series in which the main dependence on l′ is removed and which provide estimates of the autoionization widths towards higher l′. The calculated reduced resonance widths are compared with experimental results.

[1] I D Petrov, V L Sukhorukov and H. Hotop, J. Phys B. 35 (2002)
(accepted)