2012/02/29 by Kfir Blum, Raffaele Tito D'Agnolo, Raffaele Tito DʼAgnolo · 38 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Decoupling (probability) #Hadron #Higgs boson #Higgs field #Higgs mechanism #Large Hadron Collider #Limit (mathematics) #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Symmetry breaking #hep-ph
paper · pdf · doi:10.1016/j.physletb.2012.06.054
published in Physics Letters B 714(1), 66-69 (Elsevier BV) · 5 pages, 1 figure. v2: corrected error at order $(mh/mH)^4$ in eqs.(8-9), added comment about spurion analysis in footnote 1, updated figure 1. No qualitative and no significant numerical change
openalex publication_date 2012/06/28 · arxiv created 2014/04/10 · arxiv updated 2015/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Motivated by recent results from the LHC experiments, we analyze Higgs couplings in two Higgs doublet models with an approximate PQ symmetry. Models of this kind can naturally accommodate sizable modifications to Higgs decay patterns while leaving production at hadron colliders untouched. Near the decoupling limit, we integrate out the heavy doublet to obtain the effective couplings of the SM-like Higgs and express these couplings in a physically transparent way, keeping all orders in (mh/mH) for small PQ breaking. Considering supersymmetric models, we show that the effects on the Higgs couplings are considerably constrained.