2018/07/30 by Abdesslam Arhrib, Adil Jueid, Stefano Moretti · 2 citations
Physics and Astronomy · #Boson #Combinatorics #Cosmology and Gravitation Theories #Electroweak interaction #Graph #Higgs boson #Higgs field #Higgs mechanism #Large Hadron Collider #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Symmetry breaking #Top quark #Vertex (graph theory) #Yukawa potential #hep-ph
paper · pdf · doi:10.1103/physrevd.98.115006
published as Phys. Rev. D 98, 115006 (2018) · 14 pages, 4 Figures and 2 Tables
arxiv created 2018/07/30 · openalex publication_date 2018/12/05 · arxiv updated 2018/12/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the production and decay of a heavy charged Higgs boson in the bg\ensuremath→tH^\ensuremath- and H^\ensuremath-\ensuremath→bt processes at the Large Hadron Collider (LHC). We show that the chiral structure of the H^\ensuremath-tb vertex entering both stages is sensitive to the underlying Higgs mechanism of electroweak symmetry breaking (EWSB) and we specifically demonstrate that one could distinguish between two popular realizations of a 2-Higgs doublet model (2HDM) embedding a new H^\ifmmode±\else\textpm\fi state, i.e., those with Type-I and -Y Yukawa couplings. The chiral structure of such a vertex, which is different in the two cases, in turn triggers a particular spin state of the top quark which is then transmitted to its decay products. Hence, both inclusive rates and exclusive observables can be used to extract the presence of such a charged Higgs boson state in LHC data.