2016/10/31 by Wolfgang Altmannshofer, Joshua Eby, Stefania Gori +3 · 62 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Boson #Fermion #Gauge boson #Gauge theory #Higgs boson #Higgs field #Higgs mechanism #Higgs sector #Little Higgs #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quark #Two-Higgs-doublet model #Yukawa potential #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.94.115032
published in Physical review. D/Physical review. D. 94(11) (American Physical Society) · v4: Bug in numerics corrected. Plots updated. Conclusions unchanged
openalex publication_date 2016/12/30 · arxiv created 2017/12/07 · arxiv updated 2017/12/08 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
Motivated by our limited knowledge of the Higgs couplings to the first two generation fermions, we analyze the collider phenomenology of a class of two Higgs doublet models (2HDMs) with a nonstandard Yukawa sector. One Higgs doublet is mainly responsible for the masses of the weak gauge bosons and the third-generation fermions, while the second Higgs doublet provides mass for the lighter fermion generations. The characteristic collider signatures of this setup differ significantly from well-studied 2HDMs with natural flavor conservation, flavor alignment, or minimal flavor violation. New production mechanisms for the heavy scalar, pseudoscalar, and charged Higgs involving second-generation quarks can become dominant. The most interesting decay modes include H/A\ensuremath→cc,tc,\ensuremathμ\ensuremathμ,\ensuremathτ\ensuremathμ and H^\ifmmode±\else\textpm\fi\ensuremath→cb,cs,\ensuremathμ\ensuremathν. Searches for low-mass dimuon resonances are currently among the best probes of the heavy Higgs bosons in this setup.