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Low-energy electron-impact dissociative excitation of molecular hydrogen and its isotopologues

Journal Article · · Physical Review A
 [1];  [2];  [1];  [3];  [1];  [1]
  1. Curtin Univ., Perth, WA (Australia)
  2. The Univ. of Western Australia, Crawley, WA (Australia)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Curtin Univ., Perth, WA (Australia)
+ Show Author Affiliations
Here we apply the adiabatic nuclei convergent close-coupling method to electron-impact dissociative excitation of H2 in the low-energy regime. Differential and integrated cross sections are presented for excitation of the b3Σ+u state, the primary pathway to dissociation of H2 at low energies. Agreement with experiment is satisfactory. Results are also presented for the isotopologues D2, T2, HD, HT, and DT, which show a pronounced isotope effect near threshold in both the differential and integrated cross sections.
Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001; AC52-06NA25396
OSTI ID:
1514977
Alternate ID(s):
OSTI ID: 1414512
Report Number(s):
LA-UR--17-28243
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 96; ISSN PLRAAN; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Electric fields and concentrations of charged and neutral hydrogen isotopic particles in the plasma of low pressure DC discharge journal August 2019
Vibrationally resolved electron-impact excitation cross sections for singlet states of molecular hydrogen journal June 2018
Calculations of positron scattering on the hydrogen molecular ion journal January 2019
Vibrational excitation of the ${{\rm{H}}}_{2}X{}^{1}{{\rm{\Sigma }}}_{g}^{+}$ state via electron-impact excitation and radiative cascade journal February 2019
Time-of-flight electron scattering from molecular hydrogen: Benchmark cross sections for excitation of the X 1 Σ g + → b 3 Σ u + transition journal May 2018
Electron-impact dissociative excitation cross sections for singlet states of molecular hydrogen journal September 2018
Low-energy electron scattering from molecular hydrogen: Excitation of the X 1 Σ g + to b 3 Σ u + transition journal December 2018
Electron-impact dissociation of molecular hydrogen into neutral fragments journal February 2018

Figures / Tables (12)

FIG. 1(p. 7)figure FIG. 1
FIG. 2(p. 7)figure FIG. 2
FIG. 3(p. 8)figure FIG. 3
FIG. 4(p. 9)figure FIG. 4
FIG. 5(p. 9)figure FIG. 5
FIG. 6(p. 9)figure FIG. 6
FIG. 7(p. 10)figure FIG. 7
FIG. 8(p. 10)figure FIG. 8
FIG. 9(p. 10)figure FIG. 9
FIG. 10(p. 11)figure FIG. 10
FIG. 11(p. 11)figure FIG. 11
FIG. 12(p. 11)figure FIG. 12

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