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arXiv · 0810.3315

Thresholds in FAPT: Euclid vs Minkowski

Alexander P. Bakulev
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Abstract

We give a short introduction to the Analytic Perturbation Theory (APT) in QCD, describe its problems and suggest as a tool for their resolution the Fractional APT (FAPT). We also describe shortly how to treat heavy-quark thresholds in FAPT. As an applications of this technique we discuss (i) the pion form factor calculation in the Euclidean FAPT and (ii) the Higgs boson decay $H^0\to b\bar{b}$ in Minkowskian FAPT. We conclude with comparison of both approaches, Euclidean and Minkowskian FAPT.

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Alexander P. Bakulev. 2008-10-21. Thresholds in FAPT: Euclid vs Minkowski. https://arxiv.org/abs/0810.3315

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