Positron-Matter Collisions

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.

  1. Positron-Matter Collisions
  2. Low-Energy Positron Scattering
  3. Scattering Formulation
  4. Reduction of Scattering Formulation
  5. Interaction Potential
  6. Polarizationi Potential
  7. Nuclear Attraction Integrals
  8. Virtual Positronium
  9. Ps C.O.M. Figure
  10. The Distributed Positron Model
  11. DPM Figure
  12. DPM Distortion Interaction Figure
  13. Computing the Interaction Potential
  14. Solution---Concurrent Computing
  15. Beowulf Quote
  16. The PATMOL Codes

The Paper Chase

If you are interested in obtaining more information about this topic, try the following:
  1. Paper: 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). [Link].
  2. Paper: 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). [Link].
  3. Paper: 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).
  4. 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).
  5. Paper: Thomas L. Gibson, "Low-Energy Positron-H2 Collisions in the Distributed Positron Model," J. Phys. B 25, 1321-1336 (1992). [Link].
  6. Paper: 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). [Link].
  7. Paper: 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). [Link].
  8. Paper: Michael A. Morrison, Thomas L. Gibson, and David Austin, "Polarization Potentials for Positron-Molecule Collisions: Positron-H2 Scattering," J. Phys. B 17, 2725-2745 (1984). [Link].

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