Positronium formation from valence and inner shells in noble gas atoms
arXiv:physics/0512176 · doi:10.1016/j.nimb.2006.01.068
Abstract
When recent experimental positronium (Ps) formation cross sections in noble gases have been compared with the most up-to date theoretical studies, the agreement is qualitative, but not quantitative. In this paper we re-examine this process and show that at low energies Ps formation must be treated nonperturbatively. We also look at Ps formation with inner shell electrons.
12 pages, 5 figures, to be published in Nuclear Instruments and Methods B