https://doi.org/10.1007/s100530050132
Triple differential cross section of electron impact ionisation of Na(3s, 3p, 3d)
Laboratoire de Physique
Moléculaire et des Collisions, Université de Metz,
Institut de Physique et Chimie, 1 Boulevard Arago, Technopôle 2000,
57078 Metz Cedex 03, France
Corresponding author: a jocelyn@ipc.sciences.univ-metz.fr
Received:
17
November
1997
Revised:
16
March
1998
Accepted:
21
March
1998
Published online: 15 June 1998
The fivefold differential cross section (5DCS) of the ionisation by electron impact of
atomic sodium is determined theoretically for its fundamental 
state and the excited
and 
states by a procedure which employs in the transition matrix element of
the first order Born approximation, the correlated double continuum (3C) wave function. This
permits us to determine the statistical M-state population and the orientation and alignment
tensors in (e,2e) detection. It is also shown that, the use of Gamow correlation term, in the
independent particle (2C) model, reproduces, only in some situations, the shape of the angular
distribution of the 5DCS obtained by the (3C) wave function.
PACS: 34.80.Dp – Atomic excitation and ionization by electron impact
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
