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Parity nonconservation in electron recombination of multiply charged ions

G. F. Gribakin·F. J. Currell·M. G. Kozlov·A. I. Mikhailov
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Abstract

We discuss a parity nonconserving asymmetry in the cross section of KLL dielectronic recombination of polarized electrons on the hydrogen-like ions with $Z \lesssim 60$. This effect is strongly enhanced because of the near-degeneracy of doubly-excited $2l2l'$ states of opposite parity in He-like ions. For ions with $Z \sim 30$ the asymmetry is of the order of $10^{-9}$. For $Z \approx 48$ a level crossing takes place, leading to the PNC asymmetry of $\pm 5\times 10^{-9}$, which is $10^8$ times greater than the basic strength of the weak interaction in atoms.

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G. F. Gribakin, F. J. Currell, M. G. Kozlov, A. I. Mikhailov. 2009-09-01. Parity nonconservation in electron recombination of multiply charged ions. https://doi.org/10.1103/physreva.72.032109

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