30 July 2026 to 5 August 2026
Natal Convention Center
America/Sao_Paulo timezone

Higgs to heavy-quark decays and forward top-quark production at LHCb using improved jet flavour tagging

1 Aug 2026, 11:45
15m
Room #12 (Praiamar Natal Hotel & Convention)

Room #12

Praiamar Natal Hotel & Convention

R. Francisco Gurgel, 33 - Ponta Negra, Natal - RN, 59090-050
Talk Higgs Physics Higgs Physics

Speaker

Murilo Santana Rangel (Federal University of Rio de Janeiro (BR))

Description

Recent advances in jet reconstruction and machine-learning-based flavour tagging have significantly expanded the physics reach of the LHCb experiment beyond its traditional core programme. A new high-performance tagger exploiting full jet-constituent and secondary-vertex information enables precise separation of b, c and light-flavour jets in the forward region, providing a powerful tool for studies of heavy-quark final states. These developments underpin two new measurements at 13 TeV: the first LHCb searches for Higgs boson decays to bb and cc, and precision measurements of forward top-quark production in the muon plus b-jet channel. Improved flavour tagging allows robust control of QCD backgrounds and enhances sensitivity to Higgs decays to heavy quarks, while in top physics it enables differential cross-section and charge-asymmetry measurements in a unique rapidity regime complementary to ATLAS and CMS. This contribution presents the methods, results, and their implications for Higgs-coupling determinations and electroweak and top phenomenology, highlighting the growing role of LHCb in the broader LHC physics programme.

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Author

Murilo Santana Rangel (Federal University of Rio de Janeiro (BR))

Presentation materials