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Berlin 2001 – wissenschaftliches Programm

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MO: Molekülphysik

MO 9: Photoionisation I (joint session A and MO)

MO 9.5: Vortrag

Donnerstag, 5. April 2001, 16:45–17:00, H1012

Single channel preference in the high–J rare–gas valence–satellite resonance enhancement — •Sven Kammer1, Bernd Zimmermann1, Sascha Mickat1, Karl-Heinz Schartner1, Holger Liebel2, Arno Ehresmann2, Hans Schmoranzer2, and Viktor Sukhorukov31JLU Giessen, 1. Phys. Institut, Heinrich-Buff-Ring 16, 35392 Giessen — 2Uni Kaiserslautern, 67653 Kaiserslautern — 3Rostov State University of Transport and Communications, 344038 Rostov-on-Don, Russia

Photon excited rare gas ions (satellites) are produced exclusively through electron correlations. In the near threshold range doubly excited states enhance the satellite production. In measurements at BESSY I and BESSY II we observe that the alignment parameter A20 of satellite states with high J-values assume practically the same value for the same states of the np4 (n+1) p configuration for Ne, Ar and Kr. A20 is nearly independent upon the photon energy inspite of the satellite production enhancement by different doubly excited states. The preferential contribution of d5/2 electron partial wave, which follows from the measurement, is so far not understood.


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