The Large Electron–Positron Collider (LEP) was one of the largest particle accelerators ever constructed. It was built at CERN, a multi-national centre for research in nuclear and particle physics near Geneva, Switzerland. LEP collided electrons …

With its 27-kilometre circumference, the Large Electron-Positron (LEP) collider was – and still is – the largest electron-positron accelerator ever built. The excavation of the LEP tunnel was Europe’s largest civil-engineering project prior to the Channel Tunnel.

Oct 9, 2000 · The LEP story begins in the late 1970s when CERN 1 Member State physicists got together to discuss the long term future of high energy physics in Europe. A new picture of fundamental interactions, unifying the electromagnetic and weak forces, was emerging, and LEP would be the machine to study it.

The LEP story began in the late 1970s when physicists belonging to the CERN Member States got together to discuss the long-term future of high-energy physics in Europe. A new picture of fundamental processes (unification) was emerging and LEP would be the machine to study it.

May 3, 2004 · LEP firmly established essential elements of the Standard Model at the quantum level. It provided indirect evidence for the existence of a light Higgs boson of the type required by the Standard Model.

Sep 11, 2019 · LEP was the highest energy e+e– collider ever built, with levels of precision that remain unsurpassed in accelerator physics. Former CERN director of accelerators Steve Myers tells LEP’s story from conception to its emotional final day.

Oct 11, 2019 · Thirty years ago, on 14 July to be precise, the Large Electron-Positron collider (LEP) was commissioned. Less than a month later on 13 August, the world’s largest accelerator recorded its first collisions.

Jun 1, 2002 · The Large Electron Positron collider LEP at CERN was commissioned in 1989 and finished operation in November 2000. During this period it was operated in different modes, with different optics, at different energies, and with varied performance. In the end, LEP surpassed all relevant design parameters.

Jul 31, 2024 · On 13 September 1983, French President François Mitterrand and his Swiss counterpart Pierre Aubert launched the construction of LEP. Excavated 100 metres below the surface, with a circumference of 27 km, this accelerator was to become the largest in the world.

With its 27-kilometre circumference, the Large Electron–Positron (LEP) collider was – and still is – the largest electron–positron accelerator ever built. LEP consisted of 5176 magnets and 128 accelerating cavities.