Research Papers in Physics and Astronomy


Date of this Version

April 1977


Published in Journal of Physics B: Atomic and Molecular Physics 10:6 (April 21, 1977), pp. L201–L206. Copyright © 1977 Institute of Physics. Used by permission.


Photoionization of the 5p6 shell in xenon leaves the ion in either the 5p5(2P3/2) or np5(2P1/2) state. Measurements of the 2P3/2 : 2P1/2 branching ratio are reported within the Xe 5s5p66p(1P1) resonance and fitted to a new theoretical expression. The maximum value of the ratio as determined by a two-parameter fit of theory to experiment is 8.8 ± 0.5 within the resonance, almost six times the nearly constant value of 1.55 found outside any resonance.

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