An EFT study of the $$pp \rightarrow \bar{t} t Z(ll) h(bb)$$ process at the FCC-$$\varvec{hh}$$
Abstract We carry out an Effective Field Theory (EFT) study of the $$pp \rightarrow \bar{t} t Zh$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>p</mml:mi> <mml:mi>p</mml:mi> <mml:mo>→</mml:mo> <mml:mover> <mml:mrow> <mml:mi>t</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>¯</mml:mo> </mml:mrow> </mml:mover> <mml:mi>t</mml:mi> <mml:mi>Z</mml:mi> <mml:mi>h</mml:mi> </mml:mrow> </mml:math> process in the "Equation missing" final state. This process can uniquely probe the $$\bar{t} t Zh$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mrow> <mml:mi>t</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>¯</mml:mo> </mml:mrow> </mml:mover> <mml:mi>t</mml:mi> <mml:mi>Z</mml:mi> <mml:mi>h</mml:mi> </mml:mrow> </mml:math> couplings arising from higher dimensional EFT operators and can also provide bounds on $$\bar{t} t Z$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mrow> <mml:mi>t</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>¯</mml:mo> </mml:mrow> </mml:mover> <mml:mi>t</mml:mi> <mml:mi>Z</mml:mi> </mml:mrow> </mml:math> coupling deviations. We highlight the importance of the proposed proton-proton Future Circular Collider (FCC- hh ) to study this process and then perform a complete collider analysis by examining the relevant background processes. This allows us to determine the FCC- hh sensitivity to probe anomalous $$\bar{t} t Zh$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mrow> <mml:mi>t</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>¯</mml:mo> </mml:mrow> </mml:mover> <mml:mi>t</mml:mi> <mml:mi>Z</mml:mi> <mml:mi>h</mml:mi> </mml:mrow> </mml:math> couplings.
Authors
- Rick S. Gupta (ORCID: https://orcid.org/0000-0003-4398-4698)
- Shweta Jain (ORCID: https://orcid.org/0000-0002-2202-7613)
- Elena Venturini (ORCID: https://orcid.org/0000-0002-2877-7271)
- S. Banerjee
- Michelangelo Mangano
Institutions
- Tata Institute of Fundamental Research (IN)
- Homi Bhabha National Institute (IN)
- European Organization for Nuclear Research (CH)
Publication Details
- Journal
- The European Physical Journal C
- Published
- 2026-03-27
- DOI
- https://doi.org/10.1140/epjc/s10052-026-15522-5
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00