Serbian scientists have an involvement with CERN that goes back to the very origins of the Organization: Yugoslavia was a founder Member State of CERN in 1954, and remained a Member State until 1961. Nevertheless, scientists from the former Yugoslavia continued to be involved with CERN.
Through the 1980s and 90s, Serbian physicists were active in the DELPHI experiment at CERN’s LEP facility, and have long been active in the ISOLDE facility, which carries out a range of research from particle astrophysics to medical physics. Serbia formally rejoined CERN in 2001 through a Co-operation Agreement, leading to involvement in both the ATLASand CMS experiments at the LHC. In addition, Serbia is involved in the ACE and NA61 experiments. Serbian industry has successfully participated in the construction of both detectors, and Serbia is also active in GRID computing.
Since 15 March 2012, Serbia is an Associate Member in the pre-stage to Membership of CERN.
At its 191st Session on 13 December 2018, the Council passed the Resolution admitting Serbia as a Member State of CERN. Serbia's Membership will become effective upon completion of the related accession and notification procedures.