2014/06/30 by Aleksandr Azatov, Christophe Grojean, Ayan Paul +1 · 2 citations
Physics and Astronomy · #Context (archaeology) #Effective field theory #Hadron #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Luminosity #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Standard Model (mathematical formulation) #Yukawa potential #hep-ex #hep-ph
paper · pdf · doi:10.1134/s1063776115030140
published as JETP Vol. 147 (3) (2015) · 30 pages, 7 figures, 3 tables; v2: small improvements in discussion, references added, typos corrected. Version submitted to JETP for a special issue in honor of the 60th birthday of V. Rubakov; v3: matches version published in JETP
openalex publication_date 2015/03/01 · arxiv created 2015/03/10 · arxiv updated 2015/06/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the off-shell Higgs data in the process pp → h (*) → Z (*) Z (*) → 4l, to constrain deviations of the Higgs couplings. We point out that this channel can be used to resolve the long- and short-distance contributions to Higgs production by gluon fusion and can thus be complementary to pp → ht t in measuring the top Yukawa coupling. Our analysis, performed in the context of effective field theory, shows that current data do not allow drawing any model-independent conclusions. We study the prospects at future hadron colliders, including the high-luminosity LHC and accelerators with higher energy, up to 100 TeV. The available QCD calculations and the theoretical uncertainties affecting our analysis are also briefly discussed.