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.

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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
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article

An EFT study of the $$pp \rightarrow \bar{t} t Z(ll) h(bb)$$ process at the FCC-$$\varvec{hh}$$

Rick S. Gupta, Shweta Jain, Elena Venturini, S. Banerjee et al.
The European Physical Journal C
Particle physics theoretical and experimental studies
article

An EFT study of the $$pp \rightarrow \bar{t} t Z(ll) h(bb)$$ process at the FCC-$$\varvec{hh}$$

Rick S. Gupta, Shweta Jain, Elena Venturini, S. Banerjee, Michelangelo Mangano
article en

Abstract

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.

The European Physical Journal CVol. 86(3)
Tata Institute of Fundamental Research (IN), Homi Bhabha National Institute (IN), European Organization for Nuclear Research (CH)
Openalex Percentile: Top 6%
Particle physics theoretical and experimental studies
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