The HiggsTools toolbox is upgraded for LHC Run 3 with 13.6 and 14 TeV cross-sections, resonant and non-resonant di-Higgs predictions including interference, and a recast four-top search limit.
Real corrections to Higgs boson pair production at NNLO in the large top quark mass limit
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abstract
In this paper we consider the next-to-next-to-leading order total cross section of Higgs boson pair production in the large top quark mass limit and compute four expansion terms in $1/m_t^2$. Good convergence is observed below the top quark threshold, which makes our results a valuable input for approximation methods which aim for next-to-next-to-leading order corrections over the whole kinematic range. We present details on various steps of our calculation; in particular, we provide results for three- and four-particle phase-space master integrals and describe in detail the evaluation of the collinear counterterms.
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HiggsTools for LHC Run 3 and Beyond
The HiggsTools toolbox is upgraded for LHC Run 3 with 13.6 and 14 TeV cross-sections, resonant and non-resonant di-Higgs predictions including interference, and a recast four-top search limit.