TY - JOUR
T1 - Convergent calculations for simultaneous electron-impact ionization-excitation of helium
AU - Kheifets, A. S.
AU - Bray, I.
AU - Bartschat, K.
PY - 1999/8/14
Y1 - 1999/8/14
N2 - Theoretical results are presented for electron-impact ionization of He(1s2), leaving the ion in the n = 2 excited states. The projectile-target interaction is described in the first-order plane-wave Born approximation, whereas the interaction between the ejected electron and the residual ion is treated non-perturbatively within the convergent close-coupling formalism. Comparison of the predictions from two entirely independent approaches, formulated either in coordinate or in momentum space, provides a basis for further systematic improvement of the models.
AB - Theoretical results are presented for electron-impact ionization of He(1s2), leaving the ion in the n = 2 excited states. The projectile-target interaction is described in the first-order plane-wave Born approximation, whereas the interaction between the ejected electron and the residual ion is treated non-perturbatively within the convergent close-coupling formalism. Comparison of the predictions from two entirely independent approaches, formulated either in coordinate or in momentum space, provides a basis for further systematic improvement of the models.
UR - http://www.scopus.com/inward/record.url?scp=0032643575&partnerID=8YFLogxK
U2 - 10.1088/0953-4075/32/15/104
DO - 10.1088/0953-4075/32/15/104
M3 - Article
SN - 0953-4075
VL - 32
SP - L433-L438
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
IS - 15
ER -