/ Phenomenology-HEP arXiv:0905.2356

Resummation in Fractional APT: How many loops do we need to take into account?

Bakulev, Alexander P. (Dubna, JINR)

Published in: Acta Phys.Polon.Supp.
Year: 2009
Vol.: 2
Page No: 241-247
Pages: 6

Abstract: We give a short introduction to the Analytic Perturbation Theory (APT) and its generalization to Fractional powers -- FAPT. We describe how to treat heavy-quark thresholds in FAPT and then show how to resum perturbative series in both the one-loop APT and FAPT. As an application we consider FAPT description of the Higgs boson decay $H^0\to b\bar{b}$.

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