Higgs pair productions in the CP-violating two-Higgs-doublet model
Ligong Bian, Ning Chen
TL;DR
This paper investigates Higgs pair production within a CP-violating two-Higgs-doublet model, analyzing constraints and predicting cross sections for future collider searches.
Contribution
It provides a comprehensive analysis of CP-violating effects on Higgs pair production and links mixing angles to Higgs self-couplings under current experimental constraints.
Findings
CP-violating mixing angles influence Higgs self-couplings
Predicted cross sections for future collider searches
Constraints significantly restrict model parameter space
Abstract
In this work, we study the SM-like Higgs pair productions in the framework of the general CP-violating two-Higgs-doublet model. Several constraints are imposed to the model sequentially, including the SM-like Higgs boson signal fits, the precise measurements of the electric dipole moments, the perturbative unitarity and stability bounds to the Higgs potential, and the most recent LHC searches for the heavy Higgs bosons. We show how are the CP-violating mixing angles related to the Higgs cubic self couplings in this setup. Afterwards, we estimate the cross sections of the future LHC/SppC searches for the Higgs pair productions, as well as other possible decay modes for the heavy Higgs bosons.
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