The coupled system (2)2Σ+ and (1)2Π of 7Li88Sr

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Schwanke, E.; Gerschmann, J.; Knöckel, H.; Ospelkaus, S.; Tiemann, E.: The coupled system (2)2Σ+ and (1)2Π of 7Li88Sr. In: Journal of Physics B: Atomic, Molecular and Optical Physics 53 (2020), Nr. 6, 65102. DOI: https://doi.org/10.1088/1361-6455/ab68f8

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/10544

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Abstract:
We analyse rovibrational transitions of the (2)2Σ+-X(1)2Σ+ system of LiSr and find the energy levels of the (2)2Σ+ state to be perturbed by coupling between the (2)2Σ+ and (1)2Π states. We present an analysis of the coupled system yielding molecular parameters for the lowest vibrational levels of the (2)2Σ+ state and for higher vibrational levels of the (1)2Π state together with molecular coupling constants. Improved Dunham coefficients for the rovibrational levels of the X(1)2Σ+ state are also obtained, where the correlation with the parameters of the excited states is removed completely. © 2020 The Author(s). Published by IOP Publishing Ltd.
License of this version: CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/
Publication type: Article
Publishing status: publishedVersion
Publication date: 2020
Keywords english: molecular spectra, potential energy surfaces, rotation, vibration and vibration-rotation constants, Binary alloys, Excited states, Lithium alloys, Mass spectrometry, Molecular spectroscopy, Potential energy, Potential energy surfaces, Quantum chemistry, Rotation, Strontium alloys, Dunham coefficients, Molecular coupling, Molecular parameters, Molecular spectra, Rovibrational levels, Rovibrational transitions, Vibration rotations, Vibrational levels, Vibration analysis
DDC: 530 | Physik

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