Thresholds in FAPT: Euclid vs Minkowski
High Energy Physics - Phenomenology
2008-10-21 v2
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 in Minkowskian FAPT. We conclude with comparison of both approaches, Euclidean and Minkowskian FAPT.
Keywords
Cite
@article{arxiv.0810.3315,
title = {Thresholds in FAPT: Euclid vs Minkowski},
author = {Alexander P. Bakulev},
journal= {arXiv preprint arXiv:0810.3315},
year = {2008}
}
Comments
14 pages, 2 tables, 10 figures. Invited talk at the 15th International Seminar on High Energy Physics "QUARKS-2008", Sergiev Posad, Russia, 23--29 May, 2008. Referrences are supplemented with HEP-Arxiv numbers