Tree-level unitarity constraints for the SM-like 2HDM

Details Tree-level unitarity constraints for the SM-like 2HDM Tree-level unitarity constraints for the SM-like 2HDM

2011-12-21

arxiv.org/abs/1112.5086v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 png figures. Results corrected after removing an error in calculations, conclusions on constraints on M_H+ modified

Scientific paper

We consider a Z_2-symmetric Two Higgs Doublet Model (2HDM), where the vacuum
expectation values of both doublets are non-vanishing. Unitarity constraints
for the SM-like 2HDM are analyzed for the mass of the lightest Higgs boson in
the range [115,127] GeV. New stringent bounds on tan\beta, 0.17are derived. A discussion of the source of these constraints is provided.

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