Large-$N_c$ quantum chromodynamics and harmonic sums
In the large-$N_c$ limit of QCD, two-point functions of local operators become harmonic sums. I review some properties which follow from this fact and which are relevant for phenomenological applications. This has led us to consider a class of analytic number theory functions as toy models of large-$N_c$ QCD which also is discussed.
Volume 97, 2023
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