The HERA collider at DESY, Hamburg, has been operating with proton and electron (or positron) beams since it was commissioned in 1991.
CERN collides heavy nuclei at new record high energy
The Largest Accelerators and Colliders of Their Time
HERA gets set to demonstrate its full potential – CERN Courier
Electrons and nuclei meet at HERA – CERN Courier
ATLAS Collaboration ATLAS Experiment at CERN
The electron–ion collider: assessing the energy dependence of key
More collisions ahead for HERA – CERN Courier
The January/February issue of the CERN Courier is out
Brookhaven to host Electron-Ion Collider – CERN Courier
Looking at cosmic rays with accelerator detectors – CERN Courier
Electrons at the LHC: a new beginning – CERN Courier
Physics Archives – Page 9 of 127 – CERN Courier
CERN Courier Mar/Apr 2023
An In-Depth Look at the Large Hadron Collider: Exploring its
1504.04956] Acknowledgments