Electric-Dipole–Quadrupole Interference of Overlapping Autoionizing Levels in Photoelectron Energy Spectra

Autor:	M. O. Krause, N. L. S. Martin, M. Wilson, D. B. Thompson, C. D. Caldwell, S. P. Frigo, R. P. Bauman
Rok vydání:	1998
Předmět:	Physics Electric dipole moment Dipole Photon Autoionization Quadrupole General Physics and Astronomy Parity (physics) Photon energy Atomic physics Spectral line
Zdroj:	Physical Review Letters. 81:1199-1202
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.81.1199
Popis:	We have measured the photon energy dependence of electric-dipole{endash}quadrupole interference in cadmium between the odd parity 4d{sup 9}5s{sup 2}5p J=1 and even parity 5p6p {sup 3} P{sub 2} autoionizing levels. The resonant interference structure is isolated by taking the difference between constant ionic state spectra at 45{degree} with respect to the photon beam in the forward and backward directions. We find interference effects that are approximately 0.5{percent} of the dipole cross section for photon energies of 13thinspeV, in good agreement with theory. We compare the results with those from (e,thinsp2e) experiments. {copyright} {ital 1998} {ital The American Physical Society }
Databáze:	OpenAIRE
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