MESA - Mainz Energy-Recovering Superconducting Accelerator

At MESA, we explore the physics opportunities offered by using the recently established Energy-Recovery-Linac (ERL) accelerator technology which enables very high electron-beam luminosities on internal targets at low energies. MESA will be the first accelerator to investigate multiturn energy recovery in a superconducting environment. The machine will therefore serve as a test-bed for world-scale facilities such as the LHeC [1].

MESA not only is a pioneering project for ERL applications, it will also pave the route for
a new era of accelerator-based precision physics. Several key experiments are currently designed to
perform precision determinations of Standard Model (SM) parameters, measurements of electromagnetic form factors in ep scattering, searches for new weakly interacting particles, and studies relevant for nuclear astrophysics.



[1] J.L. Abelleira Fernandez et al., A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector, J. Phys. G39 (2012) 075001.

[2] H. Merkel et al., Search for Light Gauge Bosons of the Dark Sector at the Mainz Microtron, Phys. Rev. Lett. 106, 251802 (2011).

[3] H. Merkel et al., Search at the Mainz Microtron for Light Massive Gauge Bosons Relevant for the Muon g-2 Anomaly, Phys. Rev. Lett. 112, 221802 (2014)