Intersecting Storage Rings

Some of the buildings associated with the ISR at CERN, Geneva. The accelerator itself is beneath the curved, tree-covered hill that runs around the outside of the road.
Intersecting Storage Rings

The ISR (standing for "Intersecting Storage Rings") was a particle accelerator at CERN. It was the world's first hadron collider, and ran from 1971 to 1984, with a maximum center of mass energy of 62 GeV. From its initial startup, the collider itself had the capability to produce particles like the J/ψ and the upsilon, as well as observable jet structure; however, the particle detector experiments were not configured to observe events with large momentum transverse to the beamline, leaving these discoveries to be made at other experiments in the mid-1970s. Nevertheless, the construction of the ISR involved many advances in accelerator physics, including the first use of stochastic cooling, and it held the record for luminosity at a hadron collider until surpassed by the Tevatron in 2004.[1][2]

  1. ^ Hubner, Kurt (2012). "Design and construction of the ISR". arXiv:1206.3948 [physics.acc-ph].
  2. ^ Hübner, Kurt; Darriulat, Pierre; Amaldi, Ugo; Bryant, Philip John (2012). 40th Anniversary of the First Proton-Proton Collisions in the CERN Intersecting Storage Rings (ISR). CERN Yellow Reports: Conference Proceedings. arXiv:1206.4876. doi:10.5170/CERN-2012-004. ISBN 9789290833758.