Top-quark decay via the anomalous couplingt¯cγat hadron colliders

1996/03/07 by Tao Han, T. Han, K. Whisnant +4 · 5 citations
Mathematics · Physics and Astronomy · #Combinatorics #Fermilab #High-Energy Particle Collisions Research #Large Hadron Collider #Mathematics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Tevatron #Top quark #Vertex (graph theory) #hep-ph

paper · pdf · doi:10.1103/physrevd.55.7241

published as Phys. Rev. D 55, 7241 (1997) · 19 pages, 8 figures, RevTeX, postscript files available via anonymous ftp: ftp://ucdhep.ucdavis.edu/han/top/ (get paper_top.ps and fig*.ps)

arxiv created 1996/03/07 · openalex publication_date 1997/06/01 · openalex created_date 2016/06/24 · arxiv updated 2016/08/24 · openalex updated_date 2026/08/05

Abstract

We determine the constraints on the anomalous top-quark coupling associated with the flavor-changing neutral current vertex tc\ensuremathγ from the limits on the b-quark rare decay b\ensuremath→s\ensuremathγ and nonstandard top-quark decays. Based on these constraints, we discuss the experimental observability of the rare decay mode t\ensuremath→c\ensuremathγ, both at the Fermilab Tevatron with a luminosity upgrade and at the CERN LHC.

Citations

• Observation of Top Quark Production inp¯pCollisions with the Collider Detector at Fermilab
• Probing the couplings of the top quark to gauge bosons

Cited by

• t→cV via SUSY FCNC couplings in the unconstrained MSSM
• Next-to-leading order QCD corrections to the top quark decay via the flavor-changing neutral-current operators with mixing effects
• Flavor-changing top quark decays inR-parity-violating supersymmetric models
• t→cg,cγ,cZin the left-right supersymmetric model
• Testing flavor-changing neutral currents in the rare top quark decayst→cViVj