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arXiv · 2101.12728

On the 3$^{1}\Pi_{u}$ state in caesium dimer

Jacek Szczepkowski·Anna Grochola·Wlodzimierz Jastrzebski·Pawel Kowalczyk
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Abstract

Polarisation labelling spectroscopy technique was employed to study the 3$^{1}\Pi_{u}$ state of Cs$_2$ molecule. The main equlibrium constants are $T_e=20684.60$cm$^{-1}$, $\omega_e=30.61$cm$^{-1}$ and $R_e=5.27$\r{A}. Vibrational levels $v=4-35$ of the 3$^{1}\Pi_{u}$ state were found to be subject to strong perturbations by the neighbouring electronic states. Energies of 3094 rovibronic levels of the perturbed complex were determined.

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Jacek Szczepkowski, Anna Grochola, Wlodzimierz Jastrzebski, Pawel Kowalczyk. 2021-01-29. On the 3$^{1}\Pi_{u}$ state in caesium dimer. https://doi.org/10.1016/j.saa.2021.119643

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