The Landau Pole and $Z^{\prime}$ decays in the 331 bilepton model

Details The Landau Pole and $Z^{\prime}$ decays in the 331 bilepton model The Landau Pole and $Z^{\prime}$ decays in the 331 bilepton model

2006-06-15

arxiv.org/abs/hep-ph/0606173v1

Eur.Phys.J.C51:701-711,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 5 figures, LaTeX2e

Scientific paper

10.1140/epjc/s10052-007-0307-6

We calculate the decay widths and branching ratios of the extra neutral boson $Z^{\prime}$ predicted by the 331 bilepton model in the framework of two different particle contents. These calculations are performed taken into account oblique radiative corrections, and Flavor Changing Neutral Currents (FCNC) under the ansatz of Matsuda as a texture for the quark mass matrices. Contributions of the order of $10^{-1}-10^{-2}$ are obtained in the branching ratios, and partial widths about one order of magnitude bigger in relation with other non- and bilepton models are also obtained. A Landau-like pole arise at 3.5 TeV considering the full particle content of the minimal model (MM), where the exotic sector is considered as a degenerated spectrum at 3 TeV scale. The Landau pole problem can be avoid at the TeV scales if a new leptonic content running below the threshold at $% 3 $ TeV is implemented as suggested by other authors.

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