Measuring the 2HDM Scalar Potential at LHC14

Abstract

After the extraordinary discovery of the Higgs boson at the LHC, the next goal is to pin down its underlying dynamics by measuring the Higgs self-couplings, along with its couplings to gauge and matter particles. As a prototype model of new physics in the scalar sector, we consider the Two Higgs Doublet Model (2HDM) with CP-conservation, and evaluate the prospects for measuring the trilinear scalar couplings among the CP-even Higgs bosons $h$ and $H$ (${\lambda }^{hhh}$, ${\lambda }^{hhH}$, ${\lambda }^{hHH}$) at LHC14. The continuum and resonant production of CP-even Higgs boson pairs, $hh$ and $hH$, offer complementary probes of the scalar potential away from the light-Higgs decoupling limit. We identify the viable search channels at LHC14 and estimate their expected discovery sensitivities.

36 pages, 17 figures, 3 tables

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Cited by in corpus (7)

• Higgs $\to \mu \tau$ in Abelian and Non-Abelian Flavor Symmetry Models
• New physics in resonant production of Higgs boson pairs
• Exploring sizable triple Higgs couplings in the 2HDM
• Impact of top-Higgs couplings on di-Higgs production at future colliders
• LHC searches for the CP-odd Higgs by the jet substructure analysis
• Search for ${\delta }^{\pm \pm }$ with new decay patterns at the LHC
• The LHC searches for heavy neutral Higgs bosons by jet substructure analysis