From bottom to top: heavy-quark precision measurements at FCC-ee

par Lars Röhrig

vendredi 19 janv. 2024, 14:30 → 16:30 Europe/Paris

Amphi 9109

The Future Circular Collider (FCC) at CERN is planned as a new, broad and powerful tool of exploration fulfilling all needs of an e+e- Higgs factory in a first stage as highest prioritised future accelerator in the 2021 European strategy update of Particle Physics. Motivated by the LEP/LHC success, it can host in a second stage a hadron-hadron collider at the highest achievable energies up to 100 TeV and thus being sensitive to energy scales an order above the LHC-ones. 

As a high-precision electroweak-, (Higgs-) and top-factory, the FCC-ee run plan allows to shed light into current tensions with the SM predictions, especially for third-generation fermions. Motivated by existing synergies in constraining BSM contributions from measurements in the bottom- and top-quark sectors, this talk describes new techniques for the measurement of Rb and the b-quark forward-backward asymmetry as well as top-quark reconstruction techniques in the clean e+e- experimental environment.