Enhancing thj production from top-Higgs FCNC couplings

In this paper, we study the single top and Higgs associated production pp → thj in the presence of top-Higgs FCNC couplings at the LHC. Under the current constraints, we find that the full cross section of pp → thj can be sizably enhanced in comparison with the SM predictions at 8 and 14 TeV LHC. We further explore the observability of top-Higgs FCNC couplings through pp → t(→ bℓ+ ν ℓ )h(→ γγ)j and find that the branching ratios Br(t → qh), Br(t → uh) and Br(t → ch) can be respectively probed to 0.12%, 0.23% and 0.26% at 3σ sensitivity at 14 TeV LHC with L=3000\;fb⁻¹ .