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Three photon virtual annihilation contributions to positronium hyperfine structure

1977; Elsevier BV; Volume: 68; Issue: 5 Linguagem: Inglês

10.1016/0370-2693(77)90474-9

ISSN

1873-2445

Autores

V.K. Cung, A. Devoto, T. Fulton, Wayne W. Repko,

Tópico(s)

Atomic and Molecular Physics

Resumo

Three photon virtual annihilation contributions to the positronium hyperfine interval are calculated to order α6m(α4R∞). The result is obtained in analytic form and leads to the small value of -0.91 MHz for the contribution to the ground state energy difference from this source.

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