anQCD: Fortran programs for couplings at complex momenta in various analytic QCD models. We provide three programs which evaluate the QCD analytic (holomorphic) couplings đť’ś Î˝ (Q 2 ) for complex or real squared momenta Q 2 . These couplings are holomorphic analogs of the powers a(Q 2 ) Î˝ of the underlying perturbative QCD (pQCD) coupling a(Q 2 )â‰ˇÎ± s (Q 2 )/Ď€, in three analytic QCD models (anQCD): Fractional Analytic Perturbation Theory (FAPT), Two-delta analytic QCD (2Î´anQCD), and Massive Perturbation Theory (MPT). The index Î˝ can be noninteger. The provided programs do basically the same job as the Mathematica package anQCD.m published by us previously [â€śanQCD: a mathematica package for calculations in general analytic QCD modelsâ€ť, Comput. Phys. Commun. 190, 182â€“199 (2015; doi:10.1016/j.cpc.2014.12.024)], but are now written in Fortran.

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