Restricted Hartree–Fock wave functions for positron/anion [A−;e+] and positron/atom [A;e+] systems

Numerical restricted Hartree–Fock wave functions are reported for positron/anion systems [A−;e+] with A = Li, Be, B, C, N, O, and F for positrons in 1s+, 2s+, 2p+, and 3d+ orbitals. The nature of the positronic orbitals, the modification in the electronic orbitals, and implications are considered. Positron affinities of the A− systems and the stability of [A−;e+] relative to A+Ps are examined. The corresponding positron/atom systems [A;e+] are also considered in an iterative fashion. It is found that RHF calculations suggest that neutral atoms do not bind a positron.