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Breakdown of the Two-Step Model in K-Shell Photoemission and Subsequent Decay Probed by the Molecular-Frame Photoelectron Angular Distributions of CO_2

Liu, X.-J. and Fukuzawa, H. and Teranishi, T. and De Fanis, A. and Takahashi, M. and Yoshida, H. and Cassimi, A. and Czasch, A. and Schmidt, L. and Dörner, R. and Wang, K. and Zimmermann, B. and McKoy, V. and Koyano, I. and Saito, N. and Ueda, K. (2008) Breakdown of the Two-Step Model in K-Shell Photoemission and Subsequent Decay Probed by the Molecular-Frame Photoelectron Angular Distributions of CO_2. Physical Review Letters, 101 (8). Art. No. 083001. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:LIUprl08

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Abstract

We report results of measurements and of Hartree-Fock level calculations of molecular-frame photoelectron angular distributions (MFPADs) for C 1s photoemission from CO2. The agreement between the measured and calculated MFPADs is on average reasonable. The measured MFPADs display a weak but definite asymmetry with respect to the O+ and CO+ fragment ions at certain energies, providing evidence for an overlap of gerade and ungerade final ionic states giving rise to a partial breakdown of the two-step model of core-level photoionization and its subsequent Auger decay.


Item Type:Article
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URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.101.083001DOIArticle
http://link.aps.org/abstract/PRL/v101/e083001PublisherArticle
Additional Information:©2008 The American Physical Society. (Received 19 December 2007; published 20 August 2008) This experiment was carried out with the approval of JASRI and supported in part by Grants-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (JSPS). The authors are grateful to L.S. Cederbaum, U. Hergenhahn, and N.M. Kabachnik for stimulating discussions and to the staff of SPring-8 for their technical assistance. X.J.L. and A.D. acknowledge financial support from J.S.P.S. and R.D., L.S., and A.C. acknowledge support by DFG.
Errata:Publisher’s Note: Breakdown of the Two-Step Model in K-Shell Photoemission and Subsequent Decay Probed by the Molecular-Frame Photoelectron Angular Distributions of CO2 [Phys. Rev. Lett. 101, 083001 (2008)] X.-J. Liu, H. Fukuzawa, T. Teranishi, A. De Fanis, M. Takahashi, H. Yoshida, A. Cassimi, A. Czasch, L. Schmidt, R. Dorner, K. Wang, B. Zimmermann, V. McKoy, I. Koyano, N. Saito, and K. Ueda Phys. Rev. Lett. 101, 109901 – Published 3 September 2008 http://dx.doi.org/10.1103/PhysRevLett.101.109901
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Japan Society for the Promotion of Science (JSPS)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Record Number:CaltechAUTHORS:LIUprl08
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:LIUprl08
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ID Code:11506
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Deposited On:25 Aug 2008 23:46
Last Modified:23 Oct 2015 18:45

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