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Investigation of two-photon 2s -> 1s decay in one-electron and one-muon ions

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arxiv 2204.10102 v1 pith:32WMIJWC submitted 2022-04-21 physics.atom-ph

Investigation of two-photon 2s -> 1s decay in one-electron and one-muon ions

classification physics.atom-ph
keywords ionsdecaytwo-photoninvestigationone-electronone-muonphotonspolarized
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We have studied the radiative decay of the 2s state of one-electron and one-muon ions, where the two-photon mechanism plays an important role. Due to the nuclear size corrections the radiative decay of the 2s state in the electron and muon ions is qualitatively different. Based on the accurate relativistic calculation, we introduced a two-parameter approximation, which makes it possible to describe the two-photon angular-differential transition probability for the polarized emitted photons with high accuracy. The emission of photons with linear and circular polarizations was studied separately. We also investigated the transition probabilities for the polarized initial and final states. The investigation was performed for ions with atomic numbers 1 < Z < 120.

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