Present and future constraints on top EW couplings
Francois Richard
TL;DR
This paper reviews current and future experimental constraints on top electroweak couplings, emphasizing the importance of precise measurements for testing BSM models and discussing prospects at LHC and ILC.
Contribution
It provides a comprehensive analysis of existing constraints and discusses the potential of future collider measurements to probe top EW couplings in a model-independent way.
Findings
LEP/SLC/Tevatron constraints significantly limit BSM predictions.
A Randall Sundrum inspired model is analyzed in detail.
LHC and ILC measurements could improve constraints on top EW couplings.
Abstract
Various BSM models predict large deviations of the top electroweak couplings. Many examples will be given emphasizing the need for precise and model independent measurements of these couplings. Here I address the question of compatibility between theoretical predictions and the LEP/SLC/Tevatron constraints which, through loop effects, allow setting very significant constraints on these predictions. A Randall Sundrum inspired prediction will be discussed in more details. Finally the prospects offered by LHC and ILC measurements for top EW couplings are briefly reviewed.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Accelerators and Free-Electron Lasers · Superconducting Materials and Applications