Implications of Yukawa texture in the charged Higgs boson phenomenology within 2HDM-III

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We discuss the implications of assuming a four-zero Yukawa texture for the properties of the charged Higgs boson within the context of the general 2-Higgs Doublet Model of Type III. We present the charged Higgs boson couplings with heavy quarks and the resulting pattern for its decays, including the decay H+ → W+ γ at 1-loop level. The parameters chosen can still avoid the B → Xₛ γ constraint, the perturbativity and ρ₀ bound. Also, we present the constraints of B0-B0 mixing and of the radiative corrections to the Z b b vertex in the regime small β. The production of charged Higgs bosons is also sensitive to the modifications of its couplings, so that we also evaluate the resulting effects on `direct' cb→ H++c. c. and `indirect' q q,gg→ t b H++c. c. production. Significant scope exists at the Large Hadron Collider for several H± production and decay channels combined to enable one to distinguish between such a model and alternative 2-Higgs doublet scenarios.