Global approach to top-quark flavor-changing interactions

2014/12/31 by Gauthier Durieux, Fabio Maltoni, Cen Zhang · 4 citations
Mathematics · Physics and Astronomy · #Computer science #Field (mathematics) #Flavor #High-Energy Particle Collisions Research #Interpretation (philosophy) #Invariant (physics) #Mathematical physics #Mathematics #Operator (biology) #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Prime (order theory) #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Theoretical physics #Top quark #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.91.074017

published as Phys. Rev. D 91, 074017 (2015) · 17 pages, 12 figures, v2 matches published version

openalex publication_date 2015/04/09 · arxiv created 2015/04/14 · arxiv updated 2015/04/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We adopt a fully gauge-invariant effective-field-theory approach for parametrizing top-quark flavor-changing-neutral-current interactions. It allows for a global interpretation of experimental constraints (or measurements) and the systematic treatment of higher-order quantum corrections. We discuss some recent results obtained at next-to-leading-order accuracy in QCD and perform, at that order, a first global analysis of a subset of the available experimental limits in terms of effective operator coefficients. We encourage experimental collaborations to adopt this approach and extend the analysis by using all information they have prime access to.

Citations

• Review of Particle Physics
• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• UFO – The Universal FeynRules Output
• Next-to-Leading-Order QCD Corrections to the Top-Quark Decay via Model-Independent Flavor-Changing Neutral-Current Couplings
• Deciphering top flavor violation at the CERN LHC withBfactories
• Search for single top quark production at LEP2
• Search for Top-Quark Production via Flavor-Changing Neutral Currents inW+1Jet Events at CDF
• Dimension-Six Terms in the Standard Model Lagrangian
• FeynRules 2.0 — A complete toolbox for tree-level phenomenology
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Phenomenological Lagrangians
• Big-Bang Nucleosynthesis

Cited by

• CERN Yellow Reports: Monographs, Vol 3 (2018): The CLIC potential for new physics
• Targets for Flavor-Violating Top Decay
• Constraints on top quark flavor changing neutral currents using diphoton events at the LHC
• Top quark electroweak couplings at future lepton colliders

Related

• Theoretical aspects of the study of top quark properties
• Top couplings and new physics: theoretical overview and developments
• Effective-Field-Theory Approach to Top-Quark Production and Decay
• Effective Lagrangian Approach to Top Decay via Flavor Changing Neutral Current
• Global Searches for New Physics with Top Quarks