Electron capture and excitation in slow H+ + He*(n) collisions
(2002) Journal of Physics B: Atomic, Molecular and Optical Physics — Vol. 35, n° 24, p. 5081-5093 (2002)
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- Abstract
- Electron capture and excitation (de-excitation) processes in slow collisions of protons with excited helium, H+ + He*(1s, NL) --> H*(nl) + He+(1s) or --> H+ + He*(1 s, N'L'), are studied by using the close coupling of the states {N, n} = 2, 3, 4 within the approach described in a previous paper. At small collision velocities, 10(6) cm s(-1) < v < 5 x 10(7) cm s(-1), the cross sections for excitation(de-excitation) are very large, due to the importance of two-step transitions. The coupling of the states with different principal quantum numbers significantly increases the cross sections for electron capture at adiabatically small collision velocities.
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Chibisov, M., Janev, RK., Urbain, X., & Brouillard, F. (2002). Electron capture and excitation in slow H+ + He*(n) collisions. Journal of Physics B: Atomic, Molecular and Optical Physics, 35(24), 5081-5093. https://doi.org/10.1088/0953-4075/35/24/310 (Original work published 2002)