The 50th Anniversary of Hadron Colliders at CERN

On 27 January 1971, beams collided for the first time in the world’s first hadron collider, the Intersecting Storage Rings (ISR), changing the course of high energy particle physics forever. By 18 May, beams were colliding at the design energy of 26.5 GeV/beam, and by 2 July, the ISR's first results were ready for presentation at the International Conference on Elementary Particles in Amsterdam.

Fifty years later, there have been five hadron colliders in the world, three at CERN and two in the US, each of which has enriched the sum of human knowledge and contributed to innovation in numerous ways. The 50th anniversary is an opportunity to look back at the achievements of previous and current machines to build the basis for future hadron colliders. 

Please note - Access to the auditorium is subject to presentation of a valid  COVID certificate (CH or EU) recognized in Switzerland. If you would like to attend in person, you may pre-register here. Please note that capacity is limited, and pre-registration does not guarantee entry. Please only come to the auditorium if you receive confirmation that your pre-registration has been accepted. Should you pre-register and decide not to come, please withdraw your registration so that we can allocate your place to another.

You should be familiar with the COVID-19 related rules for access to the CERN site.