Bounds on the charged Higgs boson in the type III two Higgs doublet model from the Fermilab Tevatron

R. Martinez, J-Alexis Rodriguez, M. Rozo
2003 Physical Review D, Particles and fields  
We consider the Two Higgs Doublet Model (2HDM) of type III which leads to Flavour Changing Neutral Currents (FCNC) at tree level. In the framework of this model we can use an appropriate form of the Yukawa Lagrangian that makes the type II model limit of the general type III couplings apparent. This way is useful in order to compare with the experimental data which is model dependent. The analytical expressions of the partial width Γ (t → H^+ b) are derived and we compare with the data
more » ... at this energy range. We examine the limits on the new parameters λ_ij from the validness of perturbation theory.
doi:10.1103/physrevd.68.035001 fatcat:f6nrozlk6bdjjghzal3ls5t23q