Toward a description of electron-induced dissociative excitation in HO : Investigation of three resonances above the B̃ state

Rabadán, I. and Gorfinkiel, J. D. (2021). Toward a description of electron-induced dissociative excitation in HO : Investigation of three resonances above the B̃ state. Physical Review A, 103(3), article no. 032804.

DOI: https://doi.org/10.1103/PhysRevA.103.032804

Abstract

Electron-induced dissociative excitation (DE) is a little studied process of significant applied relevance. Our aim is to provide a theoretical counterpart to earlier experiments [M. J. Jensen, R. C. Bilodeau, O. Heber, H. B. Pedersen, C. P. Safvan, X. Urbain, D. Zajfman, and L. H. Andersen, Phys. Rev. A 60, 2970 (1999)] on DE of HO. For this purpose, we have performed low-energy fixed-nuclei scattering calculations, based on the R-matrix method, for over 1800 geometries of HO. We have identified and characterized three resonances lying above the second (B̃) excited state of HO; their energy, lifetime, and associated quantum defect have been determined. We assess their possible contribution to the DE process.

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