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Figure 6

Figure 6: Example of region for Ag where current method fails to improve over theoretical-experimental synthesis due to collective behaviour. Differences of an order of magnitude in f1 relate to corresponding differences in f″ = f2, from smoothed delayed edges and a dipole resonance. Both predictions differ from earlier synthesis and theory by factors of two, and primarily differ from one another in the vicinity of edges. Edges at higher energies appear largely unaffected by this collective behaviour.
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