Measuring the 2HDM Scalar Potential at LHC14
PHYSICAL REVIEW D(2014)
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 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 alignment limit. We identify the viable search channels at LHC14 and estimate their expected discovery sensitivities.
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