Higgs Pair Production in gluon fusion at NLO with full top mass dependence
Sophia Borowka (Zurich University, Switzerland)

The calculation of Higgs boson pair production in gluon fusion at next-to-leading order in the strong coupling constant with full top-quark mass dependence is presented.
The usage of the programs GoSam, Reduze and SecDec for the computation and numerical evaluation of the most complicated piece, the virtual two-loop amplitude, is explained.
A comparison of the cross section of the exact result with previous approximations, as well as the invariant mass and pT distribution are shown. Further, the variation of the triple Higgs coupling is discussed.