Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-02-08
Phys.Rev.D75:075008,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
Replaced to match published version
Scientific paper
10.1103/PhysRevD.75.075008
In a recent paper, we investigated the effects of the massive charged gauge bosons (bileptons) predicted by the minimal 331 model on the off-shell vertex WWV^* (V=gamma, Z) using a SU_L(2) X U_Y(1) covariant gauge-fixing term for the bileptons. We proceed along the same lines and calculate the effects of the gauge bosons predicted by the 331 model with right-handed neutrinos. It is found that the bilepton effects on the WWV^* vertex are of the same order of magnitude than those arising from the SM and several of its extensions, provided that the bilepton mass is of the order of a few hundred of GeVs. For heavier bileptons, their effects on the WWV^* vertex are negligible. The behavior of the form factors at high energies is also discussed as it is a reflect of the gauge invariance and gauge independence of the WWV^* Green function obtained via our quantization method.
Ramirez-Zavaleta F.
Tavares-Velasco G.
Toscano J. . J.
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