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|Type:||Artigo de periódico|
|Title:||Positron Annihilation In Triphenylphosphine Oxide Complexes: Positronium Inhibition Mechanism Involving Excitation Of Charge Transfer States|
de Sa G.F.
|Abstract:||Positronium formation in triphenylphosphine oxide and its lanthanide and hydrogen peroxide complexes have been characterized. The low probability of positronium formation observed has been attributed to a mechanism involving competition between charge transfer at large distances induced by the positron-molecular electron interaction and positronium formation during positron molecule scattering. The molecular site responsible for positronium formation has been identified. © 2008 Elsevier B.V. All rights reserved.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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