Configuration interaction calculations of positron binding to Be(3P0)

2006/01/09 by M. W. J. Bromley, J. Mitroy
Engineering · Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Muon and positron interactions and applications #physics.atom-ph

paper · pdf · doi:10.1016/j.nimb.2006.01.037

published as Nucl. Instrum. Methods Phys. Res. B, 247 pg. 42 (2006) · 12 pages, 2 figures, Elsevier tex format, In press Nucl.Instrum.Meth.Phys.Res.B positron issue

arxiv created 2006/01/09 · openalex publication_date 2006/03/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The Configuration Interaction method is applied to investigate the possibility of positron binding to the metastable beryllium (1s²2s2p 3Po) state. The largest calculation obtained an estimated energy that was unstable by 0.00014 Hartree with respect to the Ps + Be⁺(2s) lowest dissociation channel. It is likely that positron binding to parent states with non-zero angular momentum is inhibited by centrifugal barriers.

Citations

• Convergence of configuration-interaction single-center calculations of positron-atom interactions
• Convergence of the partial wave expansion of the He ground state
• Properties of the triplet metastable states of the alkaline-earth-metal atoms