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In this paper, we consider the electroweak production cross-section of asingle anti-top-quark, a neutrino and a photon via charged current through the$e^-p \to e^-\bar b \to \bar t \nu_e \gamma \to \bar t(\to W^- \to (qq', l^-\bar\nu_l)+b) \nu_e\gamma$ signal. Further, we derived the sensitivity expectedto the magnetic dipole moment $(\hat a_V)$ and the electric dipole moment$(\hat a_A)$ of the top-quark at the Future Circular Collider Hadron Electron(FCC-he). We present our study for $\sqrt{s}=7.07, 10\hspace{0.8mm}TeV$, ${\calL}=50, 100, 300, 500, 1000\hspace{0.8mm}fb^{-1}$, $\delta_{sys}=0, 3,5\hspace{0.8mm}\%$ and $P_{e^-}=0\%, 80\%, -80\%$, respectively. We find thatthe sensitivity estimated on dipole moments of the top-quark is of the order ofmagnitude ${\cal O}(10^{-1})$ for both hadronic and leptonic decay modes of$W^-$: $\hat a_V=[-0.2308, 0.2204]$, $|\hat a_A|=0.2259$ at $95\%$ C.L. in thehadronic channel with unpolarized electron beam $P_{e^-}=0\%$. Our results withpolarized electron beam for $P_{e^-}=80\%$ and $P_{e^-}=-80\%$ are $\hata_V=[-0.3428, 0.3321]$, $|\hat a_A|=0.3371$ and $\hat a_V=[-0.2041, 0.1858]$,$|\hat a_A|=0.1939$ at $95\%$ C.L. in the hadronic channel. The correspondingresults for the leptonic channel with $P_{e^-}=0\%, 80\% -80\%$ are $\hata_V=[-0.3067, 0.2963]$, $|\hat a_A|=0.3019$, $\hat a_V=[-0.4563, 0.4456]$,$|\hat a_A|=0.4505$ and $\hat a_V=[-0.2695, 0.2512]$, $|\hat a_A|=0.2592$,respectively. The results for $\hat a_V$ and $\hat a_A$ in the leptonic channelare weaker by a factor of 0.75 than those corresponding to the hadronicchannel. Given these prospective sensitivities we highlight that the FCC-he ispotential top-quark factory that is particularly well suited to sensitivitystudy on its dipole moments and with cleaner environments.

Sensitivity measuring expected on the electromagnetic anomalous couplings in the $t\bar t\gamma$ vertex at the FCC-he