Parity nonconservation in dielectronic recombination of multiply charged ions

Details Parity nonconservation in dielectronic recombination of multiply charged ions Parity nonconservation in dielectronic recombination of multiply charged ions

2007-06-07

arxiv.org/abs/0706.1027v1

JOURNAL OF FUDAN UNIVERSITY(NATURAL SCIENCE) v. 46, p. 50 (2007)

Physics

Atomic Physics

Talk at International Workshop on Atomic & Nuclear Cross Disciplinary Physics, Shanghai, June 2006

Scientific paper

We discuss a parity nonconserving (PNC) asymmetry in the cross section of dielectronic recombination of polarized electrons on multiply charged ions with Z>40. This effect is strongly enhanced for close doubly-excited states of opposite parity in the intermediate compound ion. Such states are known for He-like ions. However, these levels have large energy and large radiative widths which hampers observation of the PNC asymmetry. We argue that accidentally degenerate states of the more complex ions may be more suitable for the corresponding experiment.

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