The large top quark mass expansion for Higgs boson decays into bottom quarks and into gluons
S. A. Larin, T. van Ritbergen, J. A. M. Vermaseren
Abstract
We calculate the large top quark mass expansions for the H -> bbbar decay rate in the order (alphas)2 and for the H -> gluons decay rate in the order (alphas)3. The obtained expansions rapidly converge in the region of their validity, MH < 2 mtop, i.e. below the threshold of ttbar production.
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