2017/02/20 by W. Bernreuther, Werner Bernreuther, Peter Galler +3 · 1 citation
Physics and Astronomy · #Boson #Bottom quark #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Standard Model (mathematical formulation) #Top quark #Top quark condensate #hep-ph
paper · pdf · doi:10.1103/physrevd.95.095012
published as Phys. Rev. D 95, 095012 (2017) · 36 pages, 9 figures
arxiv created 2017/02/20 · openalex publication_date 2017/05/17 · arxiv updated 2017/05/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyze, within several parameter scenarios of type-II two-Higgs doublet extensions of the standard model, the impact of heavy neutral Higgs-boson resonances on top-quark pair production and their subsequent decay to dileptonic final states at the LHC (13 TeV). In particular, we investigate the effects of heavy Higgs bosons on top-spin observables, that is, the longitudinal top-quark polarization and top-quark spin correlations. We take into account NLO QCD as well as weak interaction corrections and show that top-spin observables, if evaluated in judiciously chosen top-quark pair invariant mass bins, can significantly enhance the sensitivity to heavy Higgs resonances in top-quark pair events.