Abstract
The hyperfine structure of Rydberg states of is reported for principal quantum numbers ranging between and . From our data, singlet-triplet mixing coefficients have been deduced. A three-channel quantum-defect model has been used to analyze the resonance in singlet-triplet mixing of Rydberg states in the vicinity of the perturber. For the determination of the scattering matrix, hyperfine-structure data were found to be essential. Good agreement has been achieved between calculated and experimental singlet-triplet mixing coefficients.
- Received 30 June 1982
DOI:https://doi.org/10.1103/PhysRevA.27.1779
©1983 American Physical Society