Gp. Karwasz et al., ON POSSIBLE ABSORPTION EFFECTS IN ELASTIC-SCATTERING OF ELECTRONS ON MOLECULES, Journal of physics. B, Atomic molecular and optical physics, 28(13), 1995, pp. 443-448
Elastic cross sections for positron scattering on noble gases (Ar, Kr)
at energies of a few tens of eV exhibit structures which have been at
tributed to absorption effects. Recent, precise measurements for Ar do
not confirm the existence of such effects for electron scattering. He
re, we show that previous measurements indicate the existence of an ab
sorption effect for e(-) + H-2 scattering around 60 eV. The reason for
this can probably be ascribed to the e(-)-H-2 total cross section par
titioning scheme, which is more similar to the one for e(+)-Ar than to
the one for e(-)-Ar.