NEW PHYSICS EFFECTS IN THE FLAVOR-CHANGING NEUTRAL COUPLINGS OF THE TOP QUARK

2006/04/28 by F. Larios, F. LARIOS, R. Martinez +3 · 2 citations
Physics and Astronomy · #Large Hadron Collider #Neutral current #Neutrino Physics Research #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #Sensitivity (control systems) #Standard Model (mathematical formulation) #Top quark #hep-ph

paper · pdf · doi:10.1142/s0217751x06033039

published as Int.J.Mod.Phys.A21:3473-3494,2006 · 19 pages, 7 figures. Accepted as a review paper in Int. J. of Mod. Phys. A

arxiv created 2006/04/28 · openalex publication_date 2006/07/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We survey the flavor-changing neutral couplings (FCNC) of the top quark predicted by some extensions of the Standard Model: THDM, SUSY, Left–Right symmetric, TC2, 331, and models with extra quarks. Since the expected sensitivity of the LHC and ILC for the tcV (V = γ, g, Z) and tcH couplings is of order of a few percent, we emphasize the importance of any new physics effect that gives a prediction for these FCNC couplings within this limit. We also review the constraints imposed on these couplings from low-energy precision measurements.

Citations

• Observation of the Top Quark
• Observation of Top Quark Production inp¯pCollisions with the Collider Detector at Fermilab
• A new model of topcolor-assisted technicolor
• Top-quark rare decay t→ch in R-parity-violating SUSY
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• Probing electroweak top quark couplings at hadron colliders
• Limits on anomalous top couplings from Z pole physics
• NEW PHYSICS EFFECTS IN RARE Z DECAYS
• Flavor-changing interactions mediated by scalars at the weak scale
• τ−μflavor violation as a probe of the scale of new physics
• Weak Interactions with Lepton-Hadron Symmetry
• Analysis of t-b-W and t-t-Z couplings from CLEO and LEP/SLC data
• The rare top decay t→ c g in topcolor assisted technicolor models
• Rare top quark decayst→cVin the top-color-assisted technicolor model
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Effects of an extraZ′gauge boson on the top quark decayt→cγgamma
• Soft supersymmetry breaking, scalar top-charm mixing and Higgs signatures

Cited by

• New physics effects on hadronic decay asymmetries of the top quark
• Search for the Flavor-Changing Neutral-Current Decayt→Zqinpp¯Collisions ats=1.96 TeV