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

Abstract We present the double-virtual amplitudes contributing to the production of a Higgs boson in association with a b b ¯ $$ b\overline{b} $$ pair at the Large Hadron Collider. We perform the computation within the five-flavour scheme, which employs massless bottom quarks and finite bottom-Yukaw...

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Bibliographic Details
Main Authors: Simon Badger, Heribertus Bayu Hartanto, Rene Poncelet, Zihao Wu, Yang Zhang, Simone Zoia
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2025)066
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Summary:Abstract We present the double-virtual amplitudes contributing to the production of a Higgs boson in association with a b b ¯ $$ b\overline{b} $$ 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.
ISSN:1029-8479