Two-loop renormalization group analysis of hadronic decays of a charged Higgs boson
Andrzej Czarnecki, Andrei I. Davydychev
Abstract
We calculate next-to-leading QCD corrections to the decay H+ u d for generic up and down quarks in the final state. A recently developed algorithm for evaluation of massive two-loop Feynman diagrams is employed to calculate renormalization constants of the charged Higgs boson. The origin and summation of large logarithmic corrections to the decay rate of the top quark into a lighter charged Higgs boson is also explained.
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