https://doi.org/10.1140/epjd/e2005-00024-x
A study of the pseudostate-close-coupling method using a non-orthogonal Laguerre-L2 basis for electron-helium scattering
1
Laboratory for Theoretical and Computational Physics, Physics
Department,
Faculty of Mathematical and Natural Sciences, Institut Pertanian Bogor,
Jalan Raya Pajajaran Bogor 16143, Indonesia
2
Laboratory for Physics of Electronic Material, Physics Department,
Faculty of Mathematical and Natural Sciences, Institut Teknologi Bandung,
Jalan Ganesa 10 Bandung 40132, Indonesia
Corresponding author: a agukar@dosen.fisika.net
Received:
25
April
2004
Revised:
18
October
2004
Published online:
8
February
2005
We present the pseudostate-close-coupling method using a non-orthogonal
Laguerre-L2 basis function for the calculations of electron-helium
scattering. Our method is a frozen-core model of the target in which one of
the electrons is restricted to the 1s He+ orbital, as has been used with
great success recently. We demonstrate its applicability at a range of
projectile energies of 5 to 50 eV to scattering from the ground state to n
2 states. Generally good agreement with experiments and the other
calculations is obtained with the available differential and total
cross-sections. On occasion, there is not good agreement with experiments,
particularly at the forward and backward angles for projectile energy in the
range 30 to 50 eV.
PACS: 34.80.Bm – Elastic scattering of electrons by atoms and molecules / 34.80.Dp – Atomic excitation and ionization by electron impact
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
