/ Phenomenology-HEP arXiv:0810.3315


Thresholds in FAPT: Euclid vs Minkowski


Bakulev, Alexander P. (Dubna, JINR)

Pages: 14

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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 Запись создана 2010-10-29, последняя модификация 2013-11-12



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