Abstract
The R2 and R1 transitions of the R center in KCl have been studied using the technique of circular dichroism. The method of moments has been applied to analyze the effect of the magnetic field on the ground-and excited-state degeneracies. This analysis has given the magnetic parameters of the initial and final states of these transitions and provides an estimate of the ground-state orbital reduction factor due to Jahn-Teller distortions. Values for the energy of vibrational quanta of A1 and E symmetry were determined for KCl, LiF, and NaCl from the R2 broad-band dichroism.

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