Positron-Matter Interactions

Positron-H2 Scattering

  1. Table of Integrated Total and Momentum Transfer Cross Sections for low-energy positron-H2 collisions
  2. Figure of positron-H2 integrated total and momentum transfer cross sections
  3. Figure: Comparision of DPM with experiment
  4. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.01 eV
  5. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.02 eV
  6. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.03 eV
  7. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.04 eV
  8. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.05 eV
  9. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.075 eV
  10. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.1 eV
  11. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.2 eV
  12. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.3 eV
  13. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.4 eV
  14. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.5 eV
  15. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 0.75 eV
  16. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 1.0 eV
  17. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 1.25 eV
  18. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 1.50 eV
  19. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 1.75 eV
  20. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 2.00 eV
  21. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 2.25 eV
  22. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 2.50 eV
  23. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 2.75 eV
  24. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 3.00 eV
  25. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 4.00 eV
  26. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 5.00 eV
  27. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 6.00 eV
  28. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 7.00 eV
  29. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 8.00 eV
  30. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 9.00 eV
  31. positron-H2 differential cross sections (angle in degrees vs dcs in sq. bohr/sr) for 10.00 eV
  32. Figure of positron-H2 differential cross sections (0.01-0.10 eV)
  33. Figure of positron-H2 differential cross sections (0.1-0.75 eV)
  34. Figure of positron-H2 differential cross sections (1.0-3.0 eV)
  35. Figure of positron-H2 differential cross sections (1.0-8.0 eV)
  36. Figure of Integrated Cross Sections

The Paper Chase

If you are interested in obtaining more information about this topic, try the following:
  1. Thomas L. Gibson, "Low-Energy Positron-H2 Collisions in the Distributed Positron Model," J. Phys. B 25, 1321-1336 (1992).
  2. 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).
  3. 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).

References for Experimental results

  1. K.R. Hoffman, M.S. Dababneth, Y.-F. Ysieh, W.E. Kauppila, V. Pol, J.H. Smart, and T.S. Stein, "Total-cross-section measurements for positrons and electrons colliding with H2, N2, and CO2," Phys. Rev. A 25 1393-1401 (1982).
  2. A. Zecca, L. Chiari, A. Sarkar, K.L. Nixon, and M.J. Brunger,"Total cross sections for positron scattering from H2 at low energies," Phys. Rev. A 80 032702 (2009).

    3. This page designed and maintained by T.L. Gibson
    thomas.gibson@ttu.edu

    Page Last Modified March 30, 2010

    Return to Gibson Home Page