Mass Effects in the Higgs-Gluon Coupling: Boosted vs Off-Shell Production

Abstract

In the upcoming LHC run we will be able to probe the structure ofthe loop--induced Higgs--gluon coupling through kinematics. First, we establish state-of-the-art simulations with up to two jets to next-to-leading order including top mass effects. They allow us to search for deviations from the low-energy limits in boosted Higgs production. In addition, the size of the top mass effects suggests that they should generally be included in Higgs studies at the LHC. Next, we show how off-shell Higgs production with a decay to four leptons is sensitive to the same top mass effects. We compare the potential of both methods based on the same top--Higgs Lagrangian. Finally, we comment on related model assumptions required for a Higgs width measurement.

15 pages, 11 figures

References in corpus (13)

• PYTHIA 6.4 Physics and Manual
• Event generation with SHERPA 1.1
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• Scalar one-loop 4-point integrals
• Higgs production via gluon-gluon fusion with finite top mass beyond next-to-leading order
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• NLO QCD matrix elements + parton showers in e+e- -> hadrons
• Electroweak Symmetry Breaking and the Higgs Boson: Confronting Theories at Colliders
• Boosted Higgs Shapes
• Higgs couplings: disentangling New Physics with off-shell measurements
• Transverse momentum resummation for Higgs production via gluon fusion in the MSSM

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• Full mass dependence in Higgs boson production in association with jets at the LHC and FCC
• Approaching robust EFT limits for CP-violation in the Higgs sector
• Higgs characterisation in the presence of theoretical uncertainties and invisible decays
• Precision SMEFT bounds from the VBF Higgs at high transverse momentum
• On-shell interference effects in Higgs final states
• Off-shell effects in Higgs processes at a linear collider and implications for the LHC
• Extracting the Top-Quark Width from Non-Resonant Production
• Freeze-out Forbidden Dark Matter in the Hidden Sector in the Mass Range from sub-GeV to TeV