Electroweak physics at CEPC

Abstract

The Circular Electron–Positron Collider (CEPC) project aims to build a Circular Electron–Positron Collider capable of precision physics measurements at center-of-mass energies ranging from 90 GeV to 240 GeV. The CEPC will have a total circumference of at least one hundred kilometers and at least two interaction points. In its 10 years operation at 240 GeV, it will collect more than one million Higgs events. CEPC will also run at the [Formula: see text] pole for two years, producing more than 300 billion [Formula: see text] bosons in two years. It will also collect data around the [Formula: see text] threshold for one year, in order to perform the [Formula: see text] boson mass measurement with high precision. These datasets will boost the precision of electroweak measurements by orders of magnitude. An overview is presented of the potential of CEPC to advance precision studies of electroweak physics with an emphasis on the opportunities in [Formula: see text] and [Formula: see text] physics.