Laser-assisted binary rearrangement collision:+H→Ps+p
- 1 June 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 47 (6) , 4960-4969
- https://doi.org/10.1103/physreva.47.4960
Abstract
In the first Born approximation, the laser-assisted rearrangement collision between a positron and a hydrogen atom is systematically studied. In solving the dressed wave functions, the A⋅p gauge is adopted. To overcome the difficulty in the reduction of the S matrix, we have developed the Feynman integration technique. The scattering amplitude is reduced to one-dimensional integrals and analytical expressions. The numerical calculation is greatly simplified, which makes it possible to compute the integral cross sections for Ps formation including multiphoton processes. Our results indicate that when the laser field is presented, the cross sections for Ps formation are remarkably enhanced. This is of great importance in improving this kind of reaction.Keywords
This publication has 5 references indexed in Scilit:
- Positronium formation in a laser field including the dressing effectPhysical Review A, 1989
- Laser-assisted inelastic electron-atom collisionsPhysical Review A, 1988
- () Collisions in the Presence of a Laser FieldPhysical Review Letters, 1988
- Laser-assisted elastic electron-atom collisionsJournal of Physics B: Atomic and Molecular Physics, 1987
- Introduction to the Theory of Laser-Atom InteractionsPublished by Springer Nature ,1982