Pulsed dye-laser studies in the B3Σ –u state of Se2 Landé factors and perturbations

Abstract

Measurements by the Zeeman quantum beats method of Landé factors in the B³Σ^–_u state of Se₂ have been performed for a large number of rotational levels. A theoretical analysis of the g variations near local perturbations shows the great sensitivity of this parameter. The results throw some light upon the interaction responsible for these perturbations and the properties of the “P1_u” state which interacts with B³Σ^–_u.