The Accelerators and Beam Physics Group is in charge of beam physics issues and alignment over the complete CERN accelerator chain from the sources to the LHC. The ABP group is responsible for the organization of machine developments and contributes to operation supervision and the machine and detector alignment metrology.

It is in charge of operation and developments of hadron sources and the supervision and coordination of the hadron linacs, including the Rex-Isolde low-energy stage, and carries out research and development activities, e.g. Upgrade studies for the LHC and its injector complex, CLIC/CTF3, LINAC4, EUCARD and CARE related studies.

It is also involved in teaching activities related to accelerator physics (JUAS, CAS, Summer School, HST, USPAS etc.).