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Published October 28, 2012 | public
Journal Article

Excitation of the ᾶ^3B_1 and Ã^1B_1 states of H_2O by low-energy electron impact

Abstract

We report measured and calculated differential cross-sections for inelastic scattering of low-energy electrons by water leading to excitation of the dissociative (1b_1 → 4ɑ_1) ^(1,3)B_1 states. The measurements were taken using conventional energy-loss spectroscopy at incident energies of 9, 10, 12, 15, and 20 eV for scattering angles from 10◦ to 130◦. The calculations were carried out using the Schwinger multichannel method, with a Born-dipole correction applied in the singlet excitation channel. Integral excitation cross sections for the ᾶ^3B_1 and Ã^1B_1 states are also derived from the differential cross section results.

Additional Information

© 2012 Institute of Physics Publishing Ltd. Received 26 June 2012, in final form 21 August 2012. Published 12 September 2012. This work was sponsored by the US National Science Foundation under Grants PHY 0653452 (MAK) and PHY 0653396 (VM and CW). The work of VM and CW was supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy, and made use of the Jet Propulsion Laboratory's Supercomputing and Visualization Facility.

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023