Elastic e+ --> CH4 Differential Cross Sections at 6 eV
Also, see comparisons of the DPM DCS with experiment at:
To read more about the Distributed Positron Model (DPM) in nonlinear
molecules (or
to reference the work) please see the following:
- F.A. Gianturco, T.L. Gibson, P. Nichols, R.R. Lucchese, and T. Nishimura,
"Modelling Dynamical Correlation Forces In Low-Energy Positron Scattering
From Polyatomic Gases: A Comparison for CH4," Radiat. Phys. Chem. 68,
673-680 (2003).
Link to paper.
Preprint: [pdf] (217 KB).
-
Robert R. Lucchese, F. A. Gianturco, P. Nichols, and Thomas L. Gibson,
"A Test Calculation on SF6 of Model Potentials for Correlation and
Polarization Effects in Positron Scattering from Molecules," Chapter 25 in
New Directions in Antimatter Physics and Chemistry, edited by
Clifford M. Surko and Franco A. Gianturco (Kluwer Academic, Dordrecht, 2001). Preprint:
[gzipped ps] (494 KB);
[zipped ps] (494 KB); [pdf] (700 KB).
The experimental work in the figure above is from D.A. Przybyla, W.E.
Kaupilla, C.K. Kwan, Steven J. Smith, and T.S. Stein, Phys. Rev.
A 55, 4244 (1997). The measured cross sections have been
normalized to the DPM value at 90 degrees.
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