Probing four-fermion operators in the triple top production at future hadron colliders

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In this paper, we study the triple top quark production at the future high-energy proton-proton colliders to probe the four-fermion interactions involving three top quarks.

• We employ the Standard Model Effective Field Theory (SMEFT) to find the upper limits at $95\%$ CL on the Wilson coefficients of these kinds of four-fermion operators.
• We consider a detailed analysis with a unique signal signature of two same-sign leptons.
• A full simulation chain includes all the relevant backgrounds, realistic detector simulations and a cut-based technique are taken into account.