Abstract
We present a detailed study of the pure long-range electronic state of the molecule. The high-resolution spectral data provided by photoassociative spectroscopy of is analyzed by using the generalized simulated annealing method. The dipole matrix element of the atomic state and other effective asymptotic parameters for the long-range state are determined and a complete analytical description of the potential well is obtained. We extract a radiative lifetime of the and states equal to 26.25(8) ns and 27.75(8) ns, respectively, with a precision (0.3%) comparable to atomic physics experiment.
- Received 5 September 2001
DOI:https://doi.org/10.1103/PhysRevA.66.024502
©2002 American Physical Society