The Large Hadron Collider (LHC) in the LEP tunnel

Abstract

> ZZ --> 4 tt ) using a multi-muon detector.Studies of various limiting phenomena OCR Output than 1034 cm'2s'1 could be reached 2).This could be obtained through the process ( H particle ( mH < 0.8 Tev/ci ) seems possible at the LHC, provided a luminosity L higher It has recently been pointed out that the discovery of a massive Higgs colliders in the world.CERN could then dispose of the most formidable complex of multipurpose TeV, and eventually Pb-Pb collisions up to 1312 TeV.collisions of 16 TeV in center-of-mass, but also electron-proton collisions up to 1.7 of producing in LEP, in addition to elecuonpositron collisions, not only proton-proton It should be noted that this second installation will also open up the possibility TeV, known as the Large lIadron Collider (LHC) 1).superconducting magnets capable of handling counterrotating proton beams of app.8 LEP.This can be done by installing in the LEP tunnel a double ring of very advanced construction to enable exploration of matter at an energy level at least ten times the one of It is appropriate then to consider a further substantive step of machine means of superconducting cavities.energy will be progressively increased beyond the W pairs production threshold by events.LEP will continue to be fully exploited in the coming years, while its beam families in the Universe.The four LEP experiments have collected to date 750 000 Z fundamental new results, including the highlight of the existence of only three particleThe LEP collider after a spectacular start-up in 1989 has already produced 2. INTRODUCTION describes the more recent studies and developments.This report summarizes the main LHC parameters and subsytems and Energy Physics.HadronCollider, LHC, in the LEP tunnel will open up a new era for the High After the remarkable initial operation of LEP, the installation of a Large 1.