TLEP, first step in a long-term vision for HEP

Understand

The discovery of H(126) has renewed interest in circular e+e- colliders that can operate as Higgs factories, which benefit from three unique characteristics: i) high luminosity and reliability, ii) the availability of several interaction points, iii) superior beam energy accuracy.

• TLEP is an e+e- storage ring of 80-km circumference that can operate with very high luminosity from the Z peak (90 GeV) to the top quark pair threshold (350 GeV).
• It can achieve transverse beam polarization at the Z peak and WW threshold, giving it unparalleled accuracy on the beam energy.
• A preliminary study indicates that an 80 km tunnel could be constructed around CERN.