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Complete collision data set for electrons scattering on molecular hydrogen and its isotopologues: III. Vibrational excitation via electronic excitation and radiative decay.

Published

Author(s)

Dmitry Fursa, Mark Zammit, Igor Bray, Liam Scarlett, Daniel Boyle, Yuri Ralchenko

Abstract

We present cross sections for vibrational excitation via electronic excitation followed by radiative decay (ERD), for electrons scattering on all bound vibrational levels of the ground electronic state (X 1Σ+ g ) of molecular hydrogen and its isotopologues (H2, HD, HT, D2, DT and T2). We consider excitation of the singlet n = 2–3 states (where n refers to the atomic-limit principle quantum number) and account for all possible decay pathways back to the bound vibrational levels of the ground electronic state (X 1Σ+ g ) to produce an estimate for the ERD cross sections. A selection of the results are presented in graphical form and a full data set is provided as both numerical values and analytic fit functions in supplementary data files. The uncertainty in the cross sections is estimated to be 11%, except for scattering on the highest bound vibrational level of HD, HT, D2, and DT, where the uncertainty is 21%. The data can be downloaded from the MCCC database at mccc-db.org.
Citation
Atomic Data and Nuclear Data Tables
Volume
148

Keywords

molecular hydrogen, vibrational excitation, electronic excitation, cross sections, fit

Citation

Fursa, D. , Zammit, M. , Bray, I. , Scarlett, L. , Boyle, D. and Ralchenko, Y. (2022), Complete collision data set for electrons scattering on molecular hydrogen and its isotopologues: III. Vibrational excitation via electronic excitation and radiative decay., Atomic Data and Nuclear Data Tables, [online], https://doi.org/10.1016/j.adt.2022.101534, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934876 (Accessed April 18, 2024)
Created August 10, 2022, Updated June 23, 2023