https://doi.org/10.1007/s100530050187
Total cross-sections for positron scattering by a series of molecules
1
CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China
2
Department of Physics,
Henan Normal University,
Xinxiang 453002, Henan, P.R. China
3
Department of Fundamental Science, the Second Artillery
Command Institute, Wuhan 430012, Hubei, P.R. China
Corresponding author: a dphnu@public.zz.ha.cn
Received:
11
November
1997
Revised:
23
March
1998
Accepted:
16
June
1998
Published online: 15 October 1998
The additivity rule is employed to obtain the total (elastic+inelastic)
cross-sections for positron scattering from molecules including
a number of diatomic, polyatomic molecules
(H2, N2, HCl, CO2, NH3, SF6, CH4,
C2H4 and C3H8) over an
incident energy range of 
eV. The total cross-sections (TCS)
of the constituent atoms of molecules are obtained by employing a
complex optical model potential (composed of static, polarization
and absorption potential). The present results are compared with
experimental data and other theoretical calculations, good
agreement is obtained in intermediate- and high-energy region.
PACS: 34.80.Gs – Molecular excitation and ionization by electron impact
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
