The FCC-ee design study: luminosity and beam polarization

Understand

The FCC-ee accelerator is considered within the FCC design study as a possible first step towards the ultimate goal of a 100 TeV hadron collider.

• It is a high luminosity e+e- storage ring collider, designed to cover energies of around 90, 160, 240 and 350GeV ECM (for the Z peak, the WW threshold, the ZH and ttbar cross-section maxima respectively) leading to different operating modes.
• We report on the current status of the design study, on the most promising concepts and relevant challenges.
• The expected luminosity performance at all energies, and first studies on transverse polarization for beam energy calibrations will be presented.