Constraints on economical 331 models from mixing of K, Bd and Bs neutral mesons

Abstract

We analyze the effect of flavor changing neutral currents within 331 models. In particular, we concentrate in the so-called "economical" models, which have a minimal scalar sector. Taking into account the experimental measurements of observables related to neutral K and B meson mixing, we study the resulting bounds for angles and phases in the mixing matrix for the down quark sector, and the mass and mixing parameters related to the new Z' gauge boson.

arXiv comment11 pages, 3 figures. Eqs. (8) and (9) corrected, to be published in Phys. Rev. D

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• Anatomy of New Physics in B-Bbar mixing
• R-parity as a residual gauge symmetry : probing a theory of cosmological dark matter
• Flavor changing neutral currents in 331 models
• Phenomenological aspects of the exotic $T$ quark in 331 models
• FCNC, CP violation and implications for some rare decays in an SU(4)_L X U(1)_X extension of the standard model
• Flavor Changing Neutral Current processes and family discrimination in 3-3-1 models
• Scalar Potential Without Cubic Term in 3-3-1 Models Without Exotic Electric Charges
• Bounds on quark mixing, $M_{Z^{\prime }}$ and $Z-Z^{\prime }$ mixing angle from flavor changing neutral processes in a 3-3-1 model
• Stability of the Scalar Potential and Symmetry Breaking in the Economical 3-3-1 Model
• Sources of FCNC in $SU(3{)}_C\otimes SU(3{)}_L\otimes U(1{)}_X$ models