Deep Minima and Vortices for Positronium Formation in Positron-Hydrogen and Positron-Helium Collisions
Description:
This dissertation work is a study of positronium formation for positron-hydrogen and positron-helium collisions in the Ore gap (the energy region between the threshold for ground-state positronium formation and the first excitation level of the target atom) using variational K-matrices. We have fitted the K-matrices using multichannel effective range theories and using polynomials. Using the variational K-matrices and their fits, we have located zeros in the positronium-formation scattering amp…
more
Date:
May 2021
Creator:
Alrowaily, Albandari Wanes
Partner:
UNT Libraries