# Thresholds in FAPT: Euclid vs Minkowski - High Energy Physics - Phenomenology

Abstract: We give a short introduction to the Analytic Perturbation Theory APT inQCD, describe its problems and suggest as a tool for their resolution theFractional APT FAPT. We also describe shortly how to treat heavy-quarkthresholds in FAPT. As an applications of this technique we discuss i thepion form factor calculation in the Euclidean FAPT and ii the Higgs bosondecay $H^0\to b\bar{b}$ in Minkowskian FAPT. We conclude with comparison ofboth approaches, Euclidean and Minkowskian FAPT.

Author: Alexander P. Bakulev

Source: https://arxiv.org/