2006/05/31 by Gabriel A. González-Sprinberg, G. A. Gonzalez-Sprinberg, R. Martinez +3
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-007-0344-1
Accepted to be published in the Europ. Phys. Jour. C; 16 pages, 2 figures
openalex publication_date 2007/07/17 · arxiv created 2007/10/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The flavor changing neutral top quark decay t -> c X is computed, where X is a neutral standard model particle, in a extended model with a single extra dimension. The cases for the photon, X= γ, and a Standard Model Higgs boson, X = H, are analyzed in detail in a non-linearRξgauge. We find that the branching ratios can be enhanced by the dynamics originated in the extra dimension. In the limit where 1/R >> ->, we have found Br(t -> c γ) ≃ 10-10 for 1/R = 0.5 TeV. For the decay t -> c H, we have found Br(t -> cH) ≃ 10-10 for a low Higgs mass value. The branching ratios go to zero when 1/R -> ∞.