One of the first participations of Argentinian scientists in CERN activities took place in 1975-1978 with scientists from the Universidad Nacional de Mar del Plata (UNMP) participating in the design and modification of power supplies for focusing magnets in the group PS/PO. Subsequently, individual high-energy physicists participated in EMC and L3.

In 1992 an ICA was signed with the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), which was replaced in 2007 by a higher-level ICA with the Government of Argentina. A protocol to the 2007 Co-operation Agreement was signed in 2009. The President of Argentina visited CERN the same year.

The third CERN-Latin American School of High Energy Physics, for postgraduate students working towards a PhD, was organized in Malargüe (Argentina) in 2005. The HELEN Network (2005-2009) was very helpful for the development of the CERN-Argentinian relations, being instrumental for the groups of the Universidad de Buenos Aires (UBA) and the Universidad Nacional de la Plata (UNLP) to become members of the ATLAS Collaboration. Since 2011, UNLP, UNMP and UBA are institutions included in the EPLANET programme of the European Commission that supports the exchange between scientists from Latin American and Europe.

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