FCNC in the 3-3-1 model with right-handed neutrinos

Abstract

Flavor changing neutral currents coming from a new non-universal neutral Gauge-Boson and from the non-unitary quark mixing matrix for the $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ model with right handed neutrinos are studied. By imposing as experimental constraints the measured values of the 3x3 quark mixing matrix, the neutral meson mixing, and the bounds measured values for direct flavor changing neutral current processes, the largest mixing of the known quarks with the exotic ones can be established, with new sources of flavor changing neutral currents being identified. Our main result is that for a $|V_{tb}|$ value smaller than one, large rates of rare top decays such as $t\to c\gamma$, $t\to cZ$, and $t\to cg$ (where g stands for the gluon field) are obtained; but if $|V_{tb}|\approx 1$ the model can survive present experimental limits only if the mass of the new neutral Gauge Boson becomes larger that 10 TeV.

30 pages, 1 figure. Accepted for publication in Phys. Rev. D

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• Explaining ATLAS and CMS Results Within the Reduced Minimal 3-3-1 model
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• Lepton Flavor Violation and Collider Searches in a Type I + II Seesaw Model
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