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Fig. D.2

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Energy levels of the dyad. An overall J -dependence of 9.4 cm−1 × J(J + 1) has been subtracted for clarity. Each branch is labeled with the value of |k − ℓ|τ. The τ = −1, 0, and + 1 curves are shown by red dashed lines, black solid lines, and blue dotted-dashed lines, respectively.
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