Published September 1986
| Version v1
Journal article
Theory of united-atom rotational coupling in H++He collisions
Creators
- 1. Behlen Laboratory of Physics, The University of Nebraska, Lincoln, Nebraska 68588-0111
Description
United-atom 2pσ-2pπ rotational coupling in asymmetric collisions is influenced by the avoided crossing between the 2pσ and 2sσ orbits. We study this influence using the HeH+ system as a prototype. The time-dependent Schroedinger equation is solved numerically in the basis of Σ2-Σ3-π1 molecular states. We find substantial population of the 2sσ state, in disagreement with estimates based on the Landau-Zener model. The Σ3 level is populated directed by transitions near the avoided crossing at b = 0.4 a.u. and indirectly by Σ2-π1-Σ3 rotational coupling for b>0.4 a.u
Additional details
Publishing Information
- Journal Title
- Phys. Rev., A
- Journal Volume
- 34
- Journal Issue
- 3
- Series
- Phys. Rev., A.
- Journal Page Range
- 1787-1792
- ISSN
- 0556-2791
- CODEN
- PLRAA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18015602
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- ASYMMETRY; COUPLING; HELIUM; HELIUM HYDRIDES; HYDROGEN IONS 1 PLUS; ION-ATOM COLLISIONS; MOLECULAR IONS; NUMERICAL SOLUTION; ROTATIONAL STATES; SCHROEDINGER EQUATION
- Descriptors DEC
- ATOM COLLISIONS; CATIONS; CHARGED PARTICLES; COLLISIONS; DIFFERENTIAL EQUATIONS; ELEMENTS; ENERGY LEVELS; EQUATIONS; EXCITED STATES; HELIUM COMPOUNDS; HYDRIDES; HYDROGEN COMPOUNDS; HYDROGEN IONS; ION COLLISIONS; IONS; NONMETALS; PARTIAL DIFFERENTIAL EQUATIONS; RARE GAS COMPOUNDS; RARE GASES; WAVE EQUATIONS