Speaker
Description
The Large Hadron electron Collider is a proposed upgrade of the HL-LHC. It will add an energy recovery racetrack to the CERN accelerator complex. The ERL will provide 50 GeV electrons to collide with the LHC beams, resulting in $ep$ ($eA$) collisions with cms energies $\sim 1.2\ (0.75)$ TeV/nucleon and instantaneous luminosities $\sim 10^{34}\ (5\cdot 10^{32}$) cm$^{-2}$s$^{-1}$. It could be built to start operation after the HL-LHC, and deliver integrated $ep$ luminosities around 1 ab$^{-1}$, serving as a bridge between the LHC and the next flagship project at CERN. In this contribution, we show how the LHeC can act as an enabler for future particle physics colliders. First, the ERL technique and accelerator can be used for future $e^+e^-$ colliders. Second, the detector may serve for technological developments for detectors in future colliders. Finally, we will show how measurements in $ep$ are complementary and synergetic to those $e^+e^-$ and $hh$, providing the ultimate experimental precision, e.g., for the extraction of Higgs couplings, thus completing the exploration of the TeV scale as HERA complemented LEP and Tevatron at the Fermi scale.
