Photoelectron angular distributions from O K shell of oriented CO molecules: A critical comparison between theory and experiment |
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Authors: | Ito Adachi Hikosaka Motoki Soejima Yagishita Raseev Cherepkov |
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Affiliation: | Photon Factory, Institute of Materials Structure Science, Oho 1-1, Tsukuba-shi, Ibaraki-ken 305-0801, Japan. |
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Abstract: | The dynamical information (ten dipole matrix elements and eight phase differences) has been deduced from the measured angular distributions of photoelectrons from O K shell of oriented CO molecules near the ionization threshold in the region of a sigma(*) shape resonance. Light polarization parallel and perpendicular to the molecular axis has been used. An important contribution of six lsigma partial waves with 0=l=5 to the sigma(*) shape resonance is demonstrated. A comparison with our calculations in the relaxed core Hartree-Fock approximation reveals only a qualitative agreement, therefore a more advanced theory is needed. |
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