Id. Petsalakis et al., PREDISSOCIATION WIDTHS AND LIFETIMES OF THE N=3(2)SIGMA(+) STATES OF BEH AND BED, Journal of physics. B, Atomic molecular and optical physics, 30(21), 1997, pp. 4935-4941
Vibrational levels and widths of the n = 3 Rydberg (2) Sigma(+) states
of BeH and BeD have been calculated by a multistate complex scaling m
ethod. Large widths are obtained which are consistent with the absence
of emission from these states.