2014/04/30 by Danilo Enoque Ferreira de Lima, Andreas Papaefstathiou, Michael Spannowsky · 11 citations
Computer Science · Physics and Astronomy · #Boson #Computational Physics and Python Applications #Electroweak interaction #Higgs boson #Large Hadron Collider #Pair production #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum chromodynamics #Standard Model (mathematical formulation) #Technicolor #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep08(2014)030
19 pages, 9 figures, matches published JHEP version
openalex publication_date 2014/08/01 · arxiv created 2014/08/13 · arxiv updated 2014/08/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
Measuring the Higgs boson couplings as precisely as possible is one of the major goals of the High Luminosity LHC. We show that the ( bb )( bb ) final state in Higgs boson pair production can be exploited in the boosted regime to give constraints on the trilinear Higgs boson self-coupling. In these exclusive phase space regions, novel jet substructure techniques can be used to separate the signal from the large QCD and electroweak backgrounds. New developments on trigger and b-tagging strategies for the upcoming LHC runs are necessary in order to reconstruct the Higgs bosons in boosted final states, where the trilinear self-coupling sensitivity is reduced. We find that using our approach one can set a limit for λ ≤ 1.2 at 95% CL after 3000 fb−1. As the signal-to-background ratio is small, we propose a data-driven side-band analysis to improve on the coupling measurement.