https://doi.org/10.1140/epjst/e2013-02013-0
Regular Article
The 41Σ+ electronic state of LiCs molecule
1 Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
2 Department of Theoretical Physics and Quantum Information, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-233 Gdańsk, Poland
3 Institute of Experimental Physics, Department of Physics, University of Warsaw, ul. Hoża 69, 00-681 Warszawa, Poland
a e-mail: jszczep@ifpan.edu.pl
Received: 8 June 2013
Revised: 9 August 2013
Published online: 23 October 2013
The 41Σ+ state of LiCs molecule is observed experimentally for the first time. The inverted perturbation approach (IPA) method is used to derive the potential energy curve of the state from the measured spectra. The experiment is accompanied by theoretical calculations of adiabatic potentials for excited states in LiCs including 41Σ+, performed with the MOLPRO program package. The irregular shape of the 41Σ+ state potential predicted by theory is confirmed in the experiment.
© EDP Sciences, Springer-Verlag, 2013
