Top quark anomalous FCNC production via $tqg$ couplings at an FCC-hh

We investigate the top quark anomalous flavor changing neutral current (FCNC) $tqg$ interactions to probe limits on the couplings ${\zeta }_{c}$ and ${\zeta }_{u}$ through the $qg\to l\nu b$ signal suprocess at an FCC-hh collider with center of mass energy of 100 TeV. To separate the signal from relevant Standard Model background processes, selection criteria based on boosted decision trees (BDT) is used with a set of useful kinematic variables. The sensitivities on the anomalous top FCNC couplings ${\zeta }_{u}$ and ${\zeta }_{c}$ are found to be $1.239×{10}^{-4}$ and $1.149×{10}^{-4}$ for FCC-hh with ${L}_{\mathrm{int}}=10\text{}\text{}{\mathrm{ab}}^{-1}$ at 95% C.L. including realistic detector effects of the FCC-hh baseline detector, respectively. The branchings $\mathrm{BR}\left(t\to ug\right)$ and $\mathrm{BR}\left(t\to cg\right)$ converted from obtained limits for FCNC couplings are at the order of ${10}^{-7}$ which is at least one order of magnitude better than the projected limits of HL-LHC with ${L}_{\mathrm{int}}=3\text{}\text{}{\mathrm{ab}}^{-1}$.