Is a Molecular Adiabatic Approximation Appropriate to Positronic Atoms and Molecules?

J.R. Mohallem Laboratório de'Atomos e Moléculas Especiais, Departamento de Física, ICEx, Universidade Federal de Minas Gerais, P.O. Box 702, 30123-970, Belo Horizonte, MG, Brasil

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Received: 3 09 2007;

The adiabatic approximation to positronic atoms and molecules was considered as an option to the computationally unfeasible methods that treat all particles in a common footing, in two different approaches communicated in the 37th PSPA. Here we present further assessment and comparison of the two approaches as a way of evaluating the potential of adiabatic or, as we found preferable, molecular approaches.

DOI: 10.12693/APhysPolA.113.1465 PACS numbers: 36.10.-k, 36.10.Dr, 78.70.Bj, 82.30.Gg