Low-Energy Inelastic Scattering of $He (2 S)$ on $He (1 S)$

1 November 1973

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 8 (5), 2387-2389
https://doi.org/10.1103/physreva.8.2387

Abstract

Time-of-flight scattering measurements at 8.65 eV (c.m.) display strong inelastic scattering from

He (2 {}^{3}S) + He (1 {}^{1}S)

He (2 {}^{3}P) + He (1 {}^{1}S)

. Close-coupled quantum-mechanical calculations employing ab initio potential curves and matrix elements show the inelastic process is due to strong rotational coupling between the

c {}^{3}Σ_{g}^{+}

state of

He (2 {}^{3}S) + He (1 {}^{1}S)

and the

b {}^{3}Π_{g}

state of

He (2 {}^{3}P) + He (1 {}^{1}S)

. Good agreement is found between the calculated and the experimentally measured inelastic-scattering cross sections.

Keywords

This publication has 11 references indexed in Scilit:

Theoretical Low-Energy Inelastic-Scattering Cross Sections for $He (2 S)+He(1S)\toHe(2P)+He(1S)$ : Curve Crossing between the $c {}^{3}Σ_{g}^{+}$ and $b {}^{3}Π_{g}$ States of ${He}_{2}$
Physical Review A, 1973
Differential Scattering of Metastable $He (2 S)$ on $He (1 S)$ at Energies between 5 and 10 eV
Physical Review A, 1973
Effect of Long-Range Forces in Near-Resonant Charge Transfer: Application to ${He}^{+}$ + K, Rb, and Cs
Physical Review A, 1973
Penning electron spectroscopy at very high kinetic energies: He*(Ne*) + Xe → He(Ne) + Xe+ + e− and He* + Ar → He + Ar+ + e−
Chemical Physics Letters, 1973
Low-Energy Theoretical Inelastic-Scattering Differential Cross Sections for the Process ${He}^{+} + He \to {He}^{+} + He (2 S)$
Physical Review A, 1972
Quantum-Mechanical Calculation of Cross Sections for Inelastic Atom-Atom Collisions. I. Inelastic $2 {}^{3}S \to 2 {}^{3}P$ Collisions between Metastable and Ground-State Helium Atoms
Physical Review A, 1971
Dissociation Energies of ${He}_{2}^{+} (X^{2} {Σ_{u}}^{+})$ and ${He}_{2} (A^{1} {Σ_{u}}^{+})$
Physical Review Letters, 1971
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The Journal of Chemical Physics, 1970
Adjustment of Ab Initio Potential Curves
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Exact Quantum-Mechanical Calculation of a Collinear Collision of a Particle with a Harmonic Oscillator
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Cited by 11 articles

Low-Energy Inelastic Scattering ofHe(2 S3)onHe(1 S1)

Abstract

Keywords

Low-Energy Inelastic Scattering of $He (2 S)$ on $He (1 S)$