Overview of theoretical precision of the luminosity at future electron-positron colliders

Ward, Bennie F.L.; Jadach, S.; Placzek, W.; Skrypek, M.; Yost, S.

doi:10.22323/1.414.1214

Abstract

For both the FCC-ee and the ILC, to exploit properly the respective precision physics program, the theoretical precision tag on the respective luminosity will need to be improved from the analogs of the

$0.054 \% (0.061\%)$ results at LEP at

$M_Z$ , where the former (latter) LEP result has (does not have) the pairs correction. At the FCC-ee at

$M_Z$ one needs improvement to

$0.01\%$ , for example. We present an overview of the roads one may take to reach the required

$0.01\%$ precision tag at the FCC-ee and of what the corresponding precision expectations would be for the FCC-ee

$_{350}$ , ILC

$_{500}$ , ILC

$_{1000}$ , and CLIC

$_{3000}$ setups.