Higher order photon transitions in H-like and He-like ions

Higher order photon transitions such as M1, M2 and two-photon decay are conveniently studied using highly-charged few electron ions. Here we discuss two examples from recent experiments which were done using the ATLAS facility at Argonne National Laboratory. The first is a test of relativistic quant...

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Detalles Bibliográficos
Autores principales: Dunford, R W, Kanter, E P, Schaffer, H W, Mokler, P H, Berry, H G, Livingston, A E, Cheng, S, Curtis, L
Lenguaje:eng
Publicado: 1999
Materias:
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1238/Physica.Topical.080a00143
http://cds.cern.ch/record/410819
Descripción
Sumario:Higher order photon transitions such as M1, M2 and two-photon decay are conveniently studied using highly-charged few electron ions. Here we discuss two examples from recent experiments which were done using the ATLAS facility at Argonne National Laboratory. The first is a test of relativistic quantum mechanics involving a precision measurement of the spectral shape of the two-photon decay of the 1s2s /sup 1/S/sub 0/ state in He-like nickel and the second is a test of the theory of damping in quantum mechanics involving observation of E1-M1 interference in the electric field quenching of metastable H- like ions. (21 refs).

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