Molecular collisions. XIX. The distorted wave approximation to atom‐rigid symmetric top rotational excitation

1973 ◽  
Vol 59 (4) ◽  
pp. 1974-1983 ◽  
Author(s):  
Dennis Russell ◽  
C. F. Curtiss
Keyword(s):  
Rotational Excitation ◽  
Distorted Wave ◽  
Molecular Collisions ◽  
Wave Approximation

Exchange effects in the rotational excitation of molecular hydrogen by slow electrons

1968 ◽  
Vol 304 (1479) ◽  
pp. 465-477 ◽  
Keyword(s):  
Cross Section ◽  
Molecular Hydrogen ◽  
Excitation Cross Section ◽  
Rotational Excitation ◽  
Distorted Wave ◽  
Single Centre ◽  
Wave Approximation ◽  
Exchange Effects ◽  
Slow Electrons ◽  
Electron Energy Loss

The scattering formalism of Arthurs & Dalgarno (1960) is generalized to take account of exchange (but not polarization) in the scattering of slow electrons by molecular hydrogen. The use of a single-centre molecular wavefunction is discussed, and representative calcula­tions of the j = 0→ j = 2 rotational excitation cross-section are carried out in the distorted wave approximation. The inclusion of exchange results in a significant increase (rising from 12% at 0.1 eV to over 70% at 0.5 eV) in the dominant ( p -wave) contribution to the cross-section. It is concluded that exchange effects cannot be ignored in the theoretical discussion of electron energy loss by rotational excitation in swarm experiments.

Multi-channel distorted-wave Born approximation for rovibrational transition rates in molecular collisions

2021 ◽  
Vol 155 (3) ◽  
pp. 034105
Author(s):  
Taha Selim ◽  
Arthur Christianen ◽  
Ad van der Avoird ◽  
Gerrit C. Groenenboom
Keyword(s):  
Born Approximation ◽  
Transition Rates ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Molecular Collisions

Erratum: Analytic distorted wave approximation for kaon-nucleus interactions

1984 ◽  
Vol 30 (5) ◽  
pp. 1767-1767
Author(s):  
K. Amos ◽  
F. Di Marzio
Keyword(s):  
Distorted Wave ◽  
Wave Approximation
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