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arXiv · 1408.2525

Measuring the 2HDM Scalar Potential at LHC14

Vernon Barger·Lisa L. Everett·Chris B. Jackson·Andrea D. Peterson·Gabe Shaughnessy
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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 $H$ ($λ^{hhh}$, $λ^{hhH}$, $λ^{hHH}$) 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.

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Vernon Barger, Lisa L. Everett, Chris B. Jackson, Andrea D. Peterson, Gabe Shaughnessy. 2014-08-11. Measuring the 2HDM Scalar Potential at LHC14. https://doi.org/10.1103/physrevd.90.095006

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