Record lowβbeating in the LHC

R. Tomás, T. Bach, R. Calaga, A. Langner, Y. I. Levinsen, E. H. Maclean, T. H. B. Persson, P. K. Skowronski, M. Strzelczyk, G. Vanbavinckhove, R. Miyamoto
2012 Physical Review Special Topics. Accelerators and Beams  
The LHC is currently operating with a proton energy of 4 TeV and à functions at the ATLAS and CMS interaction points of 0.6 m. This is close to the design value at 7 TeV ( à ¼ 0:55 m) and represented a challenge for various aspects of the machine operation. In particular, a huge effort was put into the optics commissioning and an unprecedented peak beating of around 7% was achieved in a high energy hadron collider.
doi:10.1103/physrevstab.15.091001 fatcat:3kyfrrspbrb6ddxfls5jp6qela