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 Title: Molecular Beam Optical Stark Spectroscopy Of Magnesium Deuteride Author(s): Steimle, Timothy Contributor(s): Wang, Hailing; Zhang, Ruohan Subject(s): Cold/Ultra-cold/Physics Abstract: Light polar, paramagnetic molecules, such as magnesium hydride, MgH, are attractive for slowing and trapping experiments because these molecules have both non-zero permanent electric dipole, $\mu$$_{el}, and magnetic dipole, \mu$$_{m}$ moments. The permanent electric dipole moment is particularly relevant to Stark deceleration which depends on the ratio of the Stark shift to molecular mass. Here we report on the Stark effect in the (0,0) A$^{2}$$\Pi – X ^{2}$$\Sigma$$^{+} band system of a cold molecular beam sample of magnesium deuteride, MgD. The lines associated with the lowest rotational levels are detected for the first time. The field-free spectrum was analyzed to produce an improved set of fine structure parameters for the A^{2}$$\Pi$(v = 0) state. The observed electric field induced splittings and shifts were analyzed to produce permanent electric dipole moments, $\mu$$_{el},of 2.561(10)D and 1.34(8)D for A^{2}$$\Pi$(v = 0) and X$^{2}$$\Sigma$$^{+}$(v=0)states, respectively. This is the first molecular beam study of MgD. Issue Date: 2014-06-19 Publisher: International Symposium on Molecular Spectroscopy Citation Info: Steimle, T.; Wang, H.; Zhang, R. MOLECULAR BEAM OPTICAL STARK SPECTROSCOPY OF MAGNESIUM DEUTERIDE. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.RH03 Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/50821 DOI: https://doi.org/10.15278/isms.2014.RH03 Rights Information: Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/ Date Available in IDEALS: 2014-09-172015-04-14
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