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15–19 May 2023
Vienna International Centre
Europe/Vienna timezone

The effect of electron correlation on trielectronic recombination rate coefficients for Be-like ions

Not scheduled
2h
Board Room A (Vienna International Centre)

Board Room A

Vienna International Centre

Wagramer Strasse 5, Vienna, Austria A-1400
Fundamental Data and Modelling Poster Session

Speaker

Chunyu Zhang (Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK)

Description

The merged-beam rate coefficients of dielectronic and trielectronic recombinations (DR and TR) for Be-like ions have been measured in many experiments. Meanwhile, theoretical data were also calculated with AUTOSTRUCTURE (AS) code for comparison with the measured resonance spectrum. However, TR resonance strengths were generally significantly underestimated by the AS calculations in most cases. In the present work, we find that the electron correlation between DR and TR resonance states with different captured electron principal quantum numbers $n$ can lead to an obvious improvement in TR resonance strengths, which is cross-validated via the relativistic distorted-wave (RDW) approximation implemented in the Flexible Atomic Code (FAC) and the semi-relativistic distorted-wave (SRDW) approximation implemented in the AS code. Previous theoretical calculations for this system, however, did not include this form of electron correlation.

Presenting Author Chunyu Zhang
Presenting Author Email Address chunyu.zhang@strath.ac.uk
Presenting Author Affiliation University of Strathclyde
Country 英国
Presenting Author Gender Female

Primary authors

Chunyu Zhang (Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK) Mr Chongyang Chen (Fudan University) Mr Nigel Badnell (Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK)

Presentation materials

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