Interaction of a Triplet and a Normal Helium Atom

1 March 1961

journal article
research article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 34 (3) , 958-960
https://doi.org/10.1063/1.1731699

Abstract

The electronic energy of the system He(¹S) and He(³S) was calculated as a function of nuclear separation. This calculation differs from an earlier one by R. A. Buckingham and A. Dalgarno [Proc. Roy. Soc. (London) A213, 327 (1952)] in three ways: (1) the use of a nodeless 2s function, (2) the use of an open‐configuration wavefunction (1s1s′) for He(¹S) and (3) the use of orbital exponents optimized for each internuclear distance. The energy obtained lies approximately one volt below the earlier calculation but confirms it in all qualitative aspects including the presence of a ``hump'' at R≅4a₀.

Keywords

This publication has 10 references indexed in Scilit:

Diffusion, De-excitation, and Three-Body Collision Coefficients for Excited Neon Atoms
Physical Review B, 1959
Properties of the Metastable Helium Atoms
Proceedings of the Physical Society, 1958
Gaseous and surface reactions involving helium metastable atoms and resonance photons
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957
Statistical Equilibrium of Triplet Levels of Neutral Helium.
The Astrophysical Journal, 1957
Absorption Studies of Helium Metastable Atoms and Molecules
Physical Review B, 1955
The De-Excitation of Helium Metastable Atoms in Helium
Proceedings of the Physical Society. Section A, 1954
Diffusion and excitation transfer of metastable helium in normal gaseous helium
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1952
The interaction of normal and metastable helium atoms
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1952
Tables for Determining Atomic Wave Functions and Energies
Physical Review B, 1935
Some Bands in the Extreme Ultraviolet Spectrum of Helium
Physical Review B, 1935