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 Title: SPECTROSCOPY OF THE LOW-ENERGY STATES OF BaO+ Author(s): VanGundy, Robert A. Contributor(s): Heaven, Michael; Bartlett, Joshua Subject(s): Electronic structure, potential energy surfaces Abstract: The BaO$^{+}$ cation is a promising candidate for studies conducted at ultra-cold temperatures. It is known that the ion can be formed by the reaction of laser-cooled Ba$^{+}$ with N$_{2}$O or O$_{2}$. Spectroscopic data are now needed for the BaO$^{+}$ cation, for both characterization of the internal state population distributions and the design of population transfer schemes. We have obtained the first spectroscopic data for BaO$^{+}$ using the pulsed-field ionization, zero kinetic energy (PFI-ZEKE) photoelectron technique. Two-color ionization was carried out via the A$^{1}$$Sigma$$^{+}$-X$^{1}$$Sigma$$^{+}$ transition of BaO. Vibronic levels of the X$^{2}$$Sigma$$^{+}$, A$^{2}$$Pi$$_{3/2}$ and A$^{2}$$Pi$$_{1/2}$ states of BaO$^{+}$ have been characterized. The results are compared with the predictions of high-level electronic structure calculations. Issue Date: 26-Jun-15 Publisher: International Symposium on Molecular Spectroscopy Citation Info: ACS Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/79213 Date Available in IDEALS: 2016-01-05
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