© 2019 The Author(s) A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photon, and an up or charm quark is presented using 81 fb−1 of proton–proton collision data taken at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC. Events with a photon, an electron or muon, a b-tagged jet, and missing transverse momentum are selected. A neural network based on kinematic variables differentiates between events from signal and background processes. The data are consistent with the background-only hypothesis, and limits are set on the strength of the tqγ coupling in an effective field theory. These are also interpreted as 95% CL upper limits on the cross section for FCNC tγ production via ...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current events via the coupling of a top quark, a photon, and ...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current events via the coupling of a top quark, a photon, and ...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photo...
A search for flavour-changing neutral current events via the coupling of a top quark, a photon, and ...