Bulletin of the American Physical Society
APS March Meeting 2021
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session C28: Fundamental processes in AMO
3:00 PM–4:36 PM,
Monday, March 15, 2021
Sponsoring Unit: DAMOP
Chair: Eduardo Ibarra Garcia Padilla, Rice Univ
Abstract: C28.00007 : Suppression of Penning ionization by orbital angular momentum conservation*
4:12 PM–4:24 PM
In this contribution, we report on the efficient suppression of He*-Li Penning ionization by laser excitation of the Li atoms. The results illustrate that not only the electron spin, but also Λ - the projection of the total molecular orbital angular momentum along the internuclear axis - is conserved during the ionization process. Our findings suggest that Λ conservation can be used as a more general means of reaction control, for example, to improve schemes for the simultaneous laser cooling and trapping of He* and alkali atoms.
*This work is funded by the German Research Foundation (Project No. DU1804/1-1), the Chemical Industry Fund and the University
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