Positronium formation from Li and Na atoms by use of pseudopotentials

Sultana N. Nahar, J. M. Wadehra
1987 Physical review. A, General physics  
Th e differential and total cross sections for the formation of osi r ' ns or e ormation of positronium in its ground state from gy posi rons are calculated in the first Born and n a a oms y t e impact of intermediate-ener ositr is or e -wave orn approximations. Hellmann-type pseudo otentials are u res. e i erence in the use of pseudopotentials and the static potential for the core representation for evaluatin v g arious rearrangement cross sections is discussed.
doi:10.1103/physreva.35.4533 pmid:9898057 fatcat:ctrpjxswf5evbljfgpc6nohcbu