Experimental lifetime of the a^{1}Δ electronically excited state of CH^{−}

Experimental lifetime of the a^{1}Δ electronically excited state of CH^{−}

By repeatedly probing the a^{1}Δ excited state and the X^{3}Σ^{−} ground-state populations in a beam of CH^{−} ions stored in a cryogenic ion-beam storage ring for 100 s, we extract an intrinsic lifetime of 14.9±0.5 s for this excited state. This is far longer than all earlier experimental and theor...

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Bibliographic Details
Main Authors: Gustav Eklund, Moa K. Kristiansson, K. C. Chartkunchand, Emma K. Anderson, Malcolm Simpson, Roland Wester, Henning T. Schmidt, Henning Zettergren, Henrik Cederquist, Wolf D. Geppert
Format: Article
Language:English
Published: American Physical Society 2022-02-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.L012016

Internet

http://doi.org/10.1103/PhysRevResearch.4.L012016

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