Date of Defense

Spring 4-22-2002

Department

Physics

First Advisor

John Tanis, Physics

Second Advisor

Allen Landers, Physics

Third Advisor

Tom Gorczyca, Physics

Abstract

Two-electron transfer to projective autoionizing 2l2l' configurations has been investigated for 9.3-33 MeV F8+ ions colliding with Ne. This work was done at Western Michigan University using the tandem Van de Graaff accelerator. From auxiliary measurements for F8++He it is determined that essentially all of the double capture events proceed via the transfer of two K-shell electrons, or a K-shell electron plus and L-shell electron, from the Ne target. An anomolously large intensity is observed for the formation of the metastable 1s(2s2p 3P) 4P state. Analysis suggests that the enhancement of this state is a consequence of the Pauli exclusion principle. Specifically, the transferred electronics, which have the same spin as the existing 1s electron, are "blocked" from going into 1s and are instead "pushed" into 2s and 2p. Thus, the Pauli exclusion that prevents electrons from being transferred into 1s has the effect of strongly enhancing the 4P state.

Access Setting

Honors Thesis-Campus Only

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