2017/10/31 by Stefania Gori, Christophe Grojean, Aurelio Juste +1
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Flavour #Higgs boson #Higgs mechanism #High-Energy Particle Collisions Research #Large Hadron Collider #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics beyond the Standard Model #Quark #Yukawa potential #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep01(2018)108
41 pages, 11 figures and 4 tables (v2: References added. Comment on associated production with a top quark added. Matched published version.)
openalex created_date 2017/10/20 · openalex publication_date 2018/01/01 · arxiv created 2018/03/27 · arxiv updated 2018/03/28 · openalex updated_date 2026/08/06
We point out that the stringent lower bounds on the masses of additional electrically neutral and charged Higgs bosons crucially depend on the flavour structure of their Yukawa interactions. We show that these bounds can easily be evaded by the introduction of flavour-changing neutral currents in the Higgs sector. As an illustration, we study the phenomenology of a two Higgs doublet model with a Yukawa texture singling out the third family of quarks and leptons. We combine constraints from low-energy flavour physics measurements, LHC measurements of the 125 GeV Higgs boson rates, and LHC searches for new heavy Higgs bosons. We propose novel LHC searches that could be performed in the coming years to unravel the existence of these new Higgs bosons.