# Update of the 2HDM-III with a four-zero texture in the Yukawa matrices and phenomenology of the charged Higgs Boson

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We update the flavor-violating constraints on the charged Higgs sector of the 2-Higgs Doublet Model Type-III 2HDM-III, using a four-zero texture in the Yukawa matrices. We give a generic Lagrangian of the 2HDM-III. In order to show the relevance of the off-diagonal terms of such a texture, we utilize the main constraints from $B$-physics, $\mu -e$ universality in $\tau$ decays and the radiative decay $Z\to b \bar{b}$ presented recently in arXiv:1212.6818 hep-ph. In particular, we show that the $H^- c \bar{b}$ coupling can be very large and very different with respect to 2HDMs with a flavor discrete symmetry i.e., ${\mathcal{Z}} 2$. We also discuss the possible enhancements of the vertices $H^\pm W^\mp V$ $V=Z, \gamma$ that arise at one-loop level.

Autor: J. Hernandez-Sanchez; S. Moretti; R. Noriega-Papaqui; A. Rosado

Fuente: https://archive.org/