6–11 Jul 2025
PALAIS DU PHARO, Marseille, France
Europe/Paris timezone

Top quark physics at FCC-ee and FCC-hh

11 Jul 2025, 08:30
20m
PALAIS DU PHARO, Marseille, France

PALAIS DU PHARO, Marseille, France

Parallel T06 - Top and Electroweak Physics T06

Speaker

Ankita Mehta (CERN)

Description

The Future Circular Collider (FCC) programme provides unique opportunities for comprehensive and precise studies of top quark physics. At the FCC-ee, operating at and slightly above the top pair threshold, a precise measurement of the top quark mass with a statistical and systematic accuracy down to the MeV level can be achieved through a threshold scan. Furthermore, the FCC-ee run at 365 GeV allows precise determinations of top quark electroweak couplings, particularly the ttZ vertex with sub-percent precision, and enables stringent constraints on flavor-changing neutral currents (FCNC), such as the Vts coupling. At the FCC-hh, the unprecedented center-of-mass energy of 84 TeV enables precise differential measurements of top quark production processes at very high momentum transfer, such as top quark pairs and rare four-top final states. These high Q2 measurements provide critical sensitivity to new physics effects at multi-TeV scales and will complement precision measurements from FCC-ee, thus offering a comprehensive exploration of the top quark sector.

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