Full-colour double-virtual amplitudes for associated production of a Higgs boson with a bottom-quark pair at the LHC
A bstract We present the double-virtual amplitudes contributing to the production of a Higgs boson in association with a $$ b\overline{b} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>b</mml:mi> <mml:mover> <mml:mi>b</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> 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.
Authors
- Yang Zhang (ORCID: https://orcid.org/0000-0001-9151-8486)
- Zihao Wu (ORCID: https://orcid.org/0000-0003-3561-5403)
- Simon Badger (ORCID: https://orcid.org/0000-0002-8089-9209)
- Heribertus Bayu Hartanto (ORCID: https://orcid.org/0000-0002-6474-7029)
- Simone Zoia (ORCID: https://orcid.org/0000-0003-1159-728X)
- René Poncelet (ORCID: https://orcid.org/0000-0003-4889-9396)
Institutions
- Pohang University of Science and Technology (KR)
- University of Science and Technology of China (CN)
- University of Zurich (CH)
- Asia Pacific Center for Theoretical Physics (KR)
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT)
- Institute of Nuclear Physics, Polish Academy of Sciences (PL)
- Peng Huanwu Center for Fundamental Theory (CN)
- Institute for Advanced Study (DE)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2025-03-11
- DOI
- https://doi.org/10.1007/jhep03(2025)066
- Citations
- 11
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 20.57
Funders
- National Science Foundation
- European Commission
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- National Natural Science Foundation of China
- HORIZON EUROPE Framework Programme