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arxiv: 2412.06519 · v2 · pith:L36JQWESnew · submitted 2024-12-09 · ✦ hep-ph · hep-th

Full-colour double-virtual amplitudes for associated production of a Higgs boson with a bottom-quark pair at the LHC

Simon Badger , Heribertus Bayu Hartanto , Rene Poncelet , Zihao Wu , Yang Zhang , Simone Zoia This is my paper
classification ✦ hep-ph hep-th
keywords amplitudesanalyticbosondouble-virtualhiggspairproductionaccount
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We present the double-virtual amplitudes contributing to the production of a Higgs boson in association with a $b\bar{b}$ pair at the Large Hadron Collider. We perform the computation within the five-flavour scheme, which employs massless bottom quarks and finite bottom-Yukawa coupling, taking into account all the colour structures. We derive the analytic form of the helicity amplitudes through finite-field reconstruction techniques. The analytic expressions have been implemented in a public C++ library, and we demonstrate that evaluations are sufficiently stable and efficient for use in phenomenological studies.

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