Housed by a 4 m diameter tunnel of 27 km circumference, with huge
underground labs and numerous surface facilities, and set up with a
precision of 0.1 mm per kilometer, the Large Electron-Positron Collider
(LEP) was not only the largest but also one of the most sophisticated
scientific research instruments ever created by Man. Located at CERN,
near Geneva, LEP was built during the years 1983 - 1989, was operational
until 2000, and corroborated the standard model of particle physics
through continuous high precision measurements.
The Author, director-general of CERN during the crucial period of the
construction of LEP, recounts vividly the convoluted decision-making and
technical implementation processes - the tunnel alone being a highly
challenging geo- and civil engineering project - and the subsequent
extremely fruitful period of scientific research. Finally he describes
the difficult decision to close down LEP, at a time when the discovery
of the Higgs boson seemed within reach.
LEP was eventually dismantled in 2000, enabling the tunnel to be reused
for building the next generation machine, the much more powerful Large
Hadron Collider (LHC), an upgrade then called LEP3 and foreseen from the
beginning. It became operational just as this account was being
completed.
Written by the main protagonist responsible for making LEP a reality,
this is the definitive inside story of a remarkable machine and the many
thousands of scientists and engineers from around the world, whose
efforts contributed to the new knowledge it produced.