Automatic computations at next-to-leading order in QCD for top-quark flavor-changing neutral processes

Abstract

Computations at next-to-leading order in the Standard Model offer new technical challenges in presence of higher dimensional operators. We introduce a framework that, starting from the top-quark effective field theory at dimension six, allows to make predictions for cross sections as well as distributions in a fully automatic way. As an application, we present the first complete results at NLO in QCD for flavor changing neutral interactions including parton shower effects, for $tZ$, $th$, $t\gamma$ associated production at the LHC.

6 pages, 4 figures

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• Transferability of Deep Learning Models in Searches for New Physics at Colliders
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• Search for top quark decays $t\to qH$, with $H\to \gamma \gamma$, in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
• Searches for anomalous $tqZ$ couplings from the trilepton signal of $tZ$ associated production at the 14 TeV LHC
• Top quark anomalous FCNC production via $tqg$ couplings at FCC-hh
• Searches for the FCNC couplings from top-Higgs associated production signal with $h\to \gamma \gamma$ at the LHC
• Top quark physics in the Large Hadron Collider era
• Towards global fits in EFT's and New Physics implications
• Theoretical aspects of the study of top quark properties
• Top and Electroweak bosons and Higgs