Abstract
The two-center convergent close-coupling method is used to calculate antihydrogen formation via positronium (Ps) scattering on antiprotons at near threshold energies. For excited Ps of energy , the behavior of the formation cross sections is valid strictly only at the respective threshold, as is the behavior for Ps in the ground state. Simple equations are given for the formation cross sections from from zero to around 0.1 eV above threshold. Some of the implications of using -Ps collisions to form antihydrogen in beams, and held in traps, are discussed.
- Received 18 November 2015
DOI:https://doi.org/10.1103/PhysRevA.93.012709
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