Variations in the parameters βc, βe, γc, and γe (defined in Eqs. (17), (18), (22), and (23)) along the course of the avoided crossing between the two l = 2 multiplets for our reference sequence of models B0 through B8. Mode a (resp. b) corresponds to the lower- (resp. higher-) frequency multiplet. Core quantities are represented by open circles and envelope quantities by open squares. Interpolations using cubic splines are overplotted (blue dashed lines for core parameters and red dot-dash lines for envelope parameters).
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