Papers › {\tt ggxy}: a flexible library to compute gluon-induced cross sections
{\tt ggxy}: a flexible library to compute gluon-induced cross sections
Joshua Davies, Kay Schönwald, Matthias Steinhauser, Daniel Stremmer
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We present the library {\tt ggxy}, written in {\tt C++}, which can be used to compute partonic and hadronic cross sections for gluon-induced processes with at least one closed heavy quark loop. It is based on analytic ingredients which avoids, to a large extent, expensive numerical integration. This results in significantly shorter run-times than other similar tools. Modifying input parameters, changing the renormalization scheme and varying renormalization and factorization scales is straightforward. In Version~1 of {\tt ggxy} we implement all routines which are needed to compute partonic and hadronic cross sections for Higgs boson pair production up to next-to-leading order in QCD. We provide flexible interfaces and allow the user to interact with the built-in amplitudes at various levels.
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