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Spontaneous relativistic two-photon decay rate mathematical expression in helium-like systems

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Abstract:

We derive a theoretical expression for the two-photon emission rate of two-electron systems, in a form suitable for easy implementation in numerical calculations. Racah algebra techniques were used to extended previous work on two-photon emission in hydrogen-like systems to more complex ones. The obtained expression is, as far as we are aware, the first general expression that gives the spontaneous two-photon decay rates of helium-like systems for any combination of multipoles.

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Authors and Affiliations

  1. Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Monte de Caparica, 2825-114 Caparica, Portugal, , , , , , PT

    J.P. Santos

  2. Centro de Física Atómica da Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Portugal, , , , , , PT

    P. Patte & F. Parente

  3. Laboratoire Kastler-Brossel (Unité mixte de recherche du CNRS no C8552), École Normale Supérieure et Université Pierre et Marie Curie, Case 74, 4 place Jussieu, 75252 Paris Cedex 05, France, , , , , , FR

    P. Indelicato

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  1. J.P. Santos
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  2. P. Patte
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  3. F. Parente
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  4. P. Indelicato
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Received 24 March 2000 and Received in final form 19 September 2000

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Santos, J., Patte, P., Parente, F. et al. Spontaneous relativistic two-photon decay rate mathematical expression in helium-like systems. Eur. Phys. J. D 13, 27–31 (2001). https://doi.org/10.1007/s100530170283

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  • DOI: https://doi.org/10.1007/s100530170283

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