Energy-Frontier Lepton-Hadron Collisions at CERN: the LHeC and the FCC-eh

TL;DR

This paper reviews the development and physics potential of energy-frontier lepton-hadron colliders like the LHeC and FCC-eh, which combine existing or future hadron beams with new electron accelerators for advanced physics research.

Contribution

It provides an overview of the machine development and physics performance studies for the LHeC and FCC-eh colliders, highlighting their potential for complementary high-energy physics investigations.

Findings

Ongoing machine development for Energy Recovery LINACs.

Physics performance studies indicate significant scientific potential.

Complementary physics programs to existing hadron colliders.

Abstract

Lepton-hadron colliders that use a proton or nucleus beam of current and future hadron colliders and let it collide with an electron beam from a newly built electron accelerator bring attractive physics programs which are strong and complementary to the hadron collider physics. Machine development for Energy Recovery LINAC and physics performance studies of such electron-hadron colliders, specifically the LHeC that uses the existing LHC beam and FCC-eh that is an option of Future Circular Collider program, are ongoing and reviewed in this article.