Supplementary materials: The double minimum E(3) 1^\Sigma_u^+ state in Cs_2

Description of Supplementary Tables Table I. Observed spectral line positions of the E–X band system of the Cs2 molecule. The table contains assigned rovibrational transitions together with experimental wavenumbers and a comparison between observed and calculated values. Table II. Experimentally determined potential energy curve for the E(3)1Σu+ electronic state of the Cs2 molecule, derived from the analysis of spectroscopic data. Table III. Dunham-type coefficients representing term values of rovibrational levels of the E(3)1Σu+ state of the Cs2 molecule, obtained from a global fit to experimental observations.