Journal
NUCLEAR PHYSICS B
Volume 888, Issue -, Pages 17-29Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysb.2014.09.003
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- Deutsche Forschungsgemeinschaft [STE 945/2-1]
- KIT
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We calculate the three-loop matching coefficient C-HH, required for a consistent description of Higgs boson pair production in gluon fusion through next-to-next-to-leading order QCD in the heavy top quark approximation. We also compute the gg -> HH amplitude in m(t) -> infinity approximation in the full theory and show its consistency with an earlier computation in heavy-top effective theory. (C) 2014 The Authors. Published by Elsevier B.V.
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