Introduction to Scattering and the
Distributed Positron Model
Printable versions of the introduction are located here. Special terms and
abbreviations are defined in the glossary.
- Positron-Matter Collisions
- Low-Energy Positron Scattering
- Scattering Formulation
- Reduction of Scattering Formulation
- Interaction Potential
- Polarizationi Potential
- Nuclear Attraction Integrals
- Virtual Positronium
- Ps C.O.M. Figure
- The Distributed Positron Model
- DPM Figure
- DPM Distortion Interaction Figure
- Computing the Interaction Potential
- Solution---Concurrent Computing
- Beowulf Quote
- The PATMOL Codes
The Paper Chase
If you are interested in obtaining more information about this topic, try
J. Franz , F. A. Gianturco, K. L. Baluja, J. Tennyson, R. Carey, R.
Montuoro, R. R. Lucchese, T. Stoecklin, P. Nichols, T. L. Gibson,
"Correlation-Polarization Effects In Electron/Positron Scattering From
Acetylene: A Comparison Of Computational Models," Nucl. Instrum. Methods
Phys. Res. B 266, 425-434 (2008).
F.A. Gianturco, P. Nichols, T.L. Gibson, and R.R. Lucchese,
"Metastable Trapping of Low-Energy Positrons by Cubane: A Computational
Experiment," Phys. Rev. A 72, 032724 (2005).
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].
Preprint: [pdf] (217 KB).
- Book Chapter:
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).
Thomas L. Gibson, "Low-Energy Positron-H2 Collisions in the
Distributed Positron Model," J. Phys. B 25, 1321-1336 (1992).
Thomas L. Gibson, "A Modified Adiabatic Approach to Positron-Atom and
Positron-Molecule Polarization Potentials: Application to Positron-He
Scattering," J. Phys. B 23, 767-776 (1990).
Brian K. Elza, Thomas L. Gibson, Michael A. Morrison, and Bidhan C. Saha,
"Non-Adiabaticity and Other Aspects of Polarisation in Positron-Molecule
Scattering," J. Phys. B 22, 113-130 (1989).
Michael A. Morrison, Thomas L. Gibson, and David Austin,
"Polarization Potentials for Positron-Molecule Collisions:
Positron-H2 Scattering," J. Phys. B 17, 2725-2745
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