Electron-positron collisions at 209 GeV in LEP

G. Arduini, R. Assmann, R. Bailey, A. Butterworth, P. Collier, K. Cornelis, S. Fartoukh, M. Lamont, G. Morpurgo, G. Roy, J. Wenninger, T. Wijnands
PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)  
The Large Electron-Positron Collider (LEP) at CERN closed down in November 2000. During the year 2000 electron-positron collisions were established at centre-ofmass energies of up to 209 GeV. The energy reach of LEP was thus extended by another 7 GeV compared to the year 1999. At the same time the luminosity production was kept high and the total delivered luminosity for the year was 233 pb -1 . High beam energy and high luminosity extended the discovery reach of LEP. The successful energy
more » ... cessful energy increase of LEP is analysed and the operation and performance in the regime of ultra-strong damping is described.
doi:10.1109/pac.2001.987514 fatcat:7to4db4t3fc2xisbsxqat4fdgm