Symmetry-Dependent Multielectron Excitations near the C <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>1</mn><mi mathvariant="italic">s</mi></math></span> Ionization Threshold and Distortion of the Shape Resonance in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>CO</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>

A. De Fanis; N. Saito; A. A. Pavlychev; D. Yu. Ladonin; M. Machida; K. Kubozuka; I. Koyano; K. Okada; K. Ikejiri; A. Cassimi; A. Czasch; R. Dörner; H. Chiba; Y. Sato; K. Ueda

doi:10.1103/PhysRevLett.89.023006

Symmetry-Dependent Multielectron Excitations near the C $1 s$ Ionization Threshold and Distortion of the Shape Resonance in ${CO}_{2}$

A. De Fanis, N. Saito, A. A. Pavlychev, D. Yu. Ladonin, M. Machida, K. Kubozuka, I. Koyano, K. Okada, K. Ikejiri, A. Cassimi, A. Czasch, R. Dörner, H. Chiba, Y. Sato, and K. Ueda

Phys. Rev. Lett. 89, 023006 – Published 21 June 2002

Abstract

Satellite bands accompanying the C $1 s$ photoline for the ${CO}_{2}$ molecule parallel to the electric vector of the incident radiation $E$ are found to be more intense than those for ${CO}_{2}$ perpendicular to $E$ in the shape resonance region. This indicates that multielectron excitations are caused in part by the interaction of the outgoing C $1 s$ photoelectron with the valence electrons. The photoelectron-impact valence excitations couple with the C $1 s$ single-hole ionization and distort the shape resonance significantly. We assign the broad resonance at $\sim 312 eV$ to a distorted $Σ_{u}$ shape resonance.

Received 17 January 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.023006

Authors & Affiliations

A. De Fanis¹, N. Saito², A. A. Pavlychev^1,3, D. Yu. Ladonin³, M. Machida⁴, K. Kubozuka⁴, I. Koyano⁴, K. Okada⁵, K. Ikejiri⁵, A. Cassimi⁶, A. Czasch⁷, R. Dörner⁷, H. Chiba¹, Y. Sato¹, and K. Ueda^1,*

¹Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
²National Metrology Institute of Japan, AIST, Tsukuba 305-8568, Japan
³Institute of Physics, St. Petersburg State University, 198094, St. Petersburg, Russia
⁴Department of Material Science, Himeji Institute of Technology, Kamigori, Hyogo 678-1297, Japan
⁵Department of Chemistry, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
⁶CIRIL/CEA/CNRS/ISMRA, University de Caen, Box 5133, F-14070 Caen Cedex 5, France
⁷Institut für Kernphysik, University Frankfurt, D-60486 Frankfurt, Germany