16- https://doi.org/10.1088/0953-4075/23/16/010
Positronium formation in positron-helium collision
- Aug 28, 1990
- Journal of Physics B: Atomic, Molecular and Optical Physics
- N C Deb +2 more
Abstract
The authors apply the first-order target continuum distorted wave (TCDW1) approximation to electron capture by positrons from helium into the ground state of positronium. Total cross sections for positronium formation are found to be in good agreement with the measurement of Fromme et al. (1986) above 160 eV. This is the energy range in which most theoretical results disagree with the measurements and indeed in previous classical trajectory Monte Carlo (CTMC) calculations it has been suggested that the experiments incorrectly describe large-angle ionization as charge transfer. The authors elaborate on this matter.
- # Cross Sections For Positronium Formation
- # Ground State Of Positronium
- # Classical Trajectory Monte Carlo
- # Classical Trajectory Monte Carlo Calculations
- # Cross Sections For Formation
- # Energy Range
- # Charge Transfer
- # Good Agreement
- # Wave Approximation
- # Monte Carlo Calculations
