Tree-level unitarity constraints in the 2HDM with CP-violation

Details Tree-level unitarity constraints in the 2HDM with CP-violation Tree-level unitarity constraints in the 2HDM with CP-violation

2003-12-30

arxiv.org/abs/hep-ph/0312374v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, no figures

Scientific paper

We obtain tree-level unitarity constraints for the Two Higgs Doublet Model (2HDM) with explicit CP-violation. We limit ourselves to the case with soft violation of the discrete Z_2 symmetry of theory. The key role is played by the rephasing invariance of the 2HDM lagrangian. Our simple approach for derivation of these constraints can be easily transferred to other forms of Higgs sector. We briefly discuss correspondence between possible violation of tree level unitarity limitation and physical content of theory.

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