Perturbations and ground state dissociation products in the mono-sulphides of beryllium and barium

¹ Spectroscopy Laboratory, Department of Physics, Banaras Hindu University, Varanasi 221005.
² Applied Physics Section, Institute of Technology, Banaras Hindu University, Varanasi, 221005, India.

Abstract

An extensive study of the potential energy curves for all the known electronic states of BeS and BaS molecules has been made and nearly all but a few observed perturbations in their spectra have been at least qualitatively explained along with the prediction of a new perturbation in the A¹Σ+ state of BaS.