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 Title: ANOMALOUS ZEEMAN SPLITTING IN THE ROVIBRATIONAL SPECTRUM OF THE OH RADICAL SOLVATED IN SUPERFLUID HELIUM or: HOW I LEARNED TO STOP WORRYING AND LOVE THE PROVERBIAL DROPLET EFFECTS Author(s): Douberly, Gary E. Subject(s): Fundamental interest Abstract: The hydroxyl radical was doped into a helium droplet, and a laser/droplet interaction zone was subjected to a homogeneous 0.425(2) Tesla magnetic field. Mid-infrared Zeeman spectroscopy reveals splittings of the \textit{Q}(3/2) $\Lambda$-doublet transitions that are 21 \% larger than those predicted by both degenerate perturbation theory and a variational treatment of the Zeeman effect. This implies simply that the product $g_{e}B\Omega_{eff}$ is 21 \% larger in superfluid helium than in the gas-phase. Although speculative, it is interesting to consider the results in the context of the Einstein-de Haas effect, in which coupling to droplet phonons induces a renormalization of the electron $g$ factor.\footnote{J.H. Mentink, M.I. Katsnelson, M. Lemeshko, Quantum many-body dynamics of the Einstein-de Hass effect, \textit{Phys. Rev. B}, \textbf{99}, 064428 (2019).} Issue Date: 2019-06-18 Publisher: International Symposium on Molecular Spectroscopy Genre: Conference Paper / Presentation Type: Text Language: English URI: http://hdl.handle.net/2142/104474 DOI: 10.15278/isms.2019.TE06 Rights Information: Copyright 2019 Gary E. Douberly Date Available in IDEALS: 2019-07-152020-01-25
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