Kinetic-energy release of fragments from electron-impact dissociation of the molecular hydrogen ion and its isotopologues

We calculate the kinetic-energy release distributions of fragments produced for electron-impact dissociation of the vibrationally excited molecular hydrogen ion H2+ and its isotopologues D2+ and T2+. Here we apply the adiabatic-nuclei convergent close-coupling method and compare results with several...

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Bibliographic Details
Main Authors: Scarlett, L., Zammit, M., Fursa, Dmitry, Bray, Igor
Format: Journal Article
Published: American Physical Society 2017
Online Access:http://hdl.handle.net/20.500.11937/60944
Description
Summary:We calculate the kinetic-energy release distributions of fragments produced for electron-impact dissociation of the vibrationally excited molecular hydrogen ion H2+ and its isotopologues D2+ and T2+. Here we apply the adiabatic-nuclei convergent close-coupling method and compare results with several different methods, including the δ approximation. Results are presented for a number of dissociative excitation transitions and dissociative ionization as a function of the initial vibrational state of the molecule. We confirm that the square root approximation is a good approximation for the adiabatic-nuclei kinetic-energy release cross sections of H2+. Agreement with experiment, where available, is good.