Quantum defect analysis

Recent work (66) using variable-wavelength photoelectron measurements and a multichannel quantum defect analysis of the principal autolonlzlng Rydberg series has sorted out this puzzle, with the result that the shape resonance was established to be approximately where expected, but was not at all clearly Identifiable without the extensive analysis used In this case. 

Mies, F.H., A multichannel quantum defect analysis of diatomic predissociation and inelastic atomic scattering, J. Chem. Phys., 80, 2514,1984. 

Apart from the electronic structure of the Rydberg states the three-channel quantum defect analysis yields the wave function of the 5dld D2 perturber... 

Figure 57. Theoretical triplet amplitudes IthCPi) of 6snp Pi Rydberg states of Ba, obtained from a five-channel quantum defect analysis. For comparison, experimental amplitudes included. A cross indicates agreement within error limits. The...

Figure 60. Triplet amplitude of 6snp P, Rydberg states of Yb. The amplitudes were derived from hyperfine structure splittings (open squares), a five-channel quantum defect analysis using term values and hyperfine structure data (open circles), and measurements of diamagnetic shifts (crosses). (Taken from Ref. 46.)...

M. Aymar, O. Robaux Multichannel quantum defect analysis of the bound even-parity J=2 spectra of neutral barium. J. Phys. B12, 531 (1979)... 

Quantum Defect Theory and Analysis of High-Precision Helium Term Energies,... 

M.J. Seaton, Quantum defect theory VII. Analysis of resonance structures, J. Phys. B 2... 

When the wavelength X (L2) of the second laser is tuned, one observes sharp intense resonances in the ion yield Mon( 2) superimposed on a continuous background of direct photoionization (Fig. 10.27). The analysis of such spectra demands the application of quantum defect theory [10.73-10.75]. 

J.A. Armstrong, P. Esherick, J.J. Wynne Bound even parity J=0 and 2 spectra of Ca A multichannel quantum-defect theory analysis. Phys. Rev. A15, 180 (1977)... 

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