Vibrational Feshbach resonances in dissociative electron attachment to uracil

Gallup, Gordon A. and Fabrikant, Ilya I. (2011). Vibrational Feshbach resonances in dissociative electron attachment to uracil. Physical Review A, 83(1) 012706.

DOI: https://doi.org/10.1103/PhysRevA.83.012706

Abstract

Low-energy dissociative electron attachment to uracil molecules in the gas phase is partly controlled by interaction between the lowest σ^* resonance with a dipole-supported anion state. We calculate this contribution using a combination of the finite element discrete model with the resonance R-matrix theory. Deuterated uracil is investigated, also, and a strong isotope effect is found. The results agree qualitatively and semiquantitatively with experimental data, but for a complete description of the process the interaction between a second N—H bond σ^* resonance in the molecule and the second π^* resonance should be included.

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• Item ORO ID
• 28426
• Item Type
• Journal Item
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	Not Set	National Science Foundation under Grant No. PHY-0652866
  Not Set	Not Set	Marie Curie International Incoming Grant No. FP7-PEOPLE-2009-IIF-252717

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2011 American Physical Society
• Depositing User
• Ilya Fabrikant