Modeling dynamical correlation forces in low-energy positron scattering from polyatomic gases: a comparison for CH4 Conference Paper uri icon


  • Two different models for treating the contributions of dynamical electron-positron correlation forces to the full interaction between low-energy positron beams scattered off polyatomic gases are considered and applied to obtain the elastic integral and differential cross sections (at collision energies below Ps formation) for the methane molecule. The computed quantities are then compared with available experiments, both for integral and differential data, and found to be in good accord with measured quantities. Both models also agree rather closely with each other and the physical reasons for this behavior are briefly discussed. 2003 Elsevier Science Ltd. All rights reserved.

published proceedings


author list (cited authors)

  • Gianturco, F. A., Gibson, T. L., Nichols, P., Lucchese, R. R., & Nishimura, T.

citation count

  • 10

complete list of authors

  • Gianturco, FA||Gibson, TL||Nichols, P||Lucchese, RR||Nishimura, T

publication date

  • October 2003