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Conference Paper

Theoretical characterization of the collective resonance states underlying the xenon giant dipole resonance

MPS-Authors
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Chen,  Yi-Jen
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, DESY, Notkestraße 85, 22607 Hamburg, Germany;
Department of Physics, University of Hamburg, Jungiusstraße 9, 20355 Hamburg, Germany;

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jpconf15_635_092046.pdf
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Citation

Chen, Y.-J., Pabst, S., Karamatskou, A., & Santra, R. (2015). Theoretical characterization of the collective resonance states underlying the xenon giant dipole resonance. Journal of Physics: Conference Series, 635: 092046. doi:10.1088/1742-6596/635/9/092046.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-57EC-0
Abstract
We present an ab initio theoretical characterization of the two fundamental collective resonances underlying the xenon giant dipole resonance (GDR). This is achieved consistently by two complementary methods implemented within the many-body configuration-interaction singles (CIS) theory. We identify one resonance at an excitation energy of 74 eV with a lifetime of 27 as, and the second at 107 eV with a lifetime of 11 as. Insights on the nature of these resonances are provided, as well as information on previously unknown resonances in xenon.