https://doi.org/10.1007/s100530070093
Orientation phenomena for direct s-p electron-ion collisional excitations in weakly coupled plasmas using the screened hyperbolic-orbit trajectory method
1
Department of Physics,
Hanyang University, Ansan, Kyunggi-Do 425-791, South Korea
2
Max-Planck-Institute for Physics of Complex Systems,
Nöthnitzer Strasse 38, 01187 Dresden, Germany
Received:
18
August
1999
Revised:
6
December
1999
Published online: 15 August 2000
Orientation phenomena for direct 
electron-ion collisional excitations
in weakly coupled plasmas (
)
are investigated using the semiclassical curved
trajectory method including the close-encounter effects.
The results show that the orientation parameters including the close-encounter effects
obtained by the hyperbolic-orbit trajectory
method have maxima and minima for small impact parameter regions.
PACS: 52.20.-j – Elementary processes in plasma / 34.80.Dp – Atomic excitation and ionization by electron impact
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
