Overview of the Path to 0.01$\%$ Theoretical Luminosity Precision for the FCCee and Its Possible Synergistic Effects for Other FCC Precision Theory Requirements

TL;DR

This paper discusses strategies to improve the theoretical luminosity precision at FCC-ee from about 0.05% to 0.01%, highlighting potential benefits for other precision physics goals.

Contribution

It provides an overview of approaches to achieve 0.01% luminosity precision at FCC-ee and explores their implications for other FCC precision requirements.

Findings

Identifies pathways to reach 0.01% luminosity precision.

Discusses potential synergistic effects for other FCC precision goals.

Highlights challenges and opportunities in theoretical luminosity calculations.

Abstract

To exploit properly the precision physics program at the FCC-ee, the theoretical precision tag on the respective luminosity will need to be improved from the 0.054$\%$ (0.061$\%$) results at LEP to 0.01$\%$, where the former (latter) LEP result has (does not have) the pairs correction. We present an overview of the roads one may take to reach the required 0.01$\%$ precision tag at the FCC-ee and we discuss possible synergistic effects of the walk along these roads for other FCC precision theory requirements.