Decays Z --> ggg and Z-prime --> ggg in the minimal 331 model

Abstract

We perform a complete calculation at the one-loop level for the Zggg and Z'ggg couplings in the context of the minimal 331 model, which predicts the existence of a new Z' gauge boson and new exotic quarks. Bose symmetry is exploited to write a compact and manifest SU_C(3)-invariant vertex function for the Vggg (V=Z,Z') coupling. Previous results on the $Z\to ggg$ decay in the standard model are reproduced. It is found that this decay is insensitive to the effects of the new exotic quarks. This in contrast with the $Z^{\prime }\to ggg$ decay, which is sensitive to both the standard model and exotic quarks, whose branching ratio is larger than that of the $Z\to ggg$ transition by about a factor of 4.

arXiv comment16 pages and 21 figures

References in corpus (20)

• $SU(3)\otimes U(1)$ Model for Electroweak Interactions
• Leptons masses in an $SU(3{)}_L\otimes U(1{)}_N$ Gauge Model
• The Standard Model on Non-Commutative Space-Time
• The electroweak theory of SU(3) $\times$ U(1)
• Heavy Charged Leptons in an $SU(3{)}_L\otimes U(1{)}_N$ Model
• Concerning the Landau Pole in 3-3-1 Models
• Z and Z' decays with and without FCNC in 331 models
• Discrete symmetries, invisible axion and lepton number symmetry in an economic 3-3-1 model
• Evading the Few TeV Perturbative Limit in 3-3-1 Models
• Two-body $Z^{\prime }$ decays in the minimal 331 model
• New physics effects in rare Z decays
• 3-3-1 Models with Unique Lepton Generations
• Bilepton gauge boson contribution to the static electromagnetic properties of the W boson in the minimal 331 model
• Trilinear gauge boson couplings and bilepton production in the SU(3)_C X SU(3)_L X U(1)_N models
• $Z$--$Z^{\prime }$ mixing and oblique corrections in an $\mathrm{SU}(3)\times \mathrm{U}(1)$ model
• 3-3-1 Models at Electroweak Scale
• Extra Neutral Gauge Boson from Two Versions of the 3-3-1 Model in Future Linear Colliders
• The Landau Pole and $Z^{\prime }$ decays in the 331 bilepton model
• Limits on Exotic Quarks in the SU(3)xU(1) Extension of the Standard Model from SUSY Search Data
• Exotic Quark Production in ep Collisions

Cited by in corpus (6)

• Limits on the quartic couplings $Z\gamma \gamma \gamma$ and $ZZ\gamma \gamma$ from $e^{+}{e}^{-}$ colliders
• Stabilization of the Electroweak Scale in 3-3-1 Models
• Decays $Z\to \gamma \gamma$ and $Z\to gg$ in the Standard Model Extension
• Decays Z --> g g gamma and Z-prime --> g g gamma in the minimal 331 model
• Radiative decays Z_H-> V_i Z (V_i=γ, Z) in little Higgs models
• Z'-> ggg decay in left-right symmetric models with three and four fermion families