The wide concrete-lined tunnel, constructed between 1983 and 1988, was formerly used to house the Large Electron-Positron Collider.

As its name implies the Large Electron-Positron Collider, collided electrons with positrons.

The Large Electron-Positron Collider had four detectors, built around the four collision points within underground halls.

Experiments at earlier colliders, such as the Tevatron and Large Electron-Positron Collider, were designed based on a similar philosophy.

Heim's theory also predicts the existence of two hypothetical neutrinos, which have been shown not to exist by experiments at the Large Electron-Positron Collider.

The Large Electron-Positron Collider (LEP) was one of the largest particle accelerators ever constructed.

The largest accelerator in the world, completed last year under the frontier between France and Switzerland, is the Large Electron-Positron collider, some 17 miles in circumference.

The lab followed up that triumph by building a 17-mile-long ring, the Large Electron-Positron collider, or Lep, to manufacture W and Z particles for further study.

Year by year and month by month, engineers had been gradually increasing the energy of the accelerator, called the Large Electron-Positron collider, or LEP.

The first chance belongs to CERN's Large Electron-Positron collider, or LEP, which is approaching the end of its planned lifetime this fall.

The most significant studies so far were performed at the Large Electron-Positron Collider (LEP) at CERN.

Last Wednesday scientists successfully tested the first two-mile segment of the European Large Electron-Positron collider, prompting acclaim from scientists at competing institutions in the United States.

The LEP accelerator straddles the border of France and Switzerland near Geneva; its name is an acronym for Large Electron-Positron collider.

Although he officially retired two years ago, he continues work on experiments in elementary particles and will head research using the Large Electron-Positron collider that is to be completed in a year.

CERN's Large Electron-Positron collider has been unable to find the Higgs particle at masses below 114 GeV, setting this as a lower bound for the mass.

The abbreviation LEPC is also sometimes used in reference to the Large Electron-Positron Collider, though it is usually abbreviated LEP.

In the early planning studies for the Large Electron-Positron Collider (LEP) at CERN, the Higgs boson played no role.

The SM also makes several predictions about the decay of Z bosons, which have been experimentally confirmed by the Large Electron-Positron Collider at CERN.

The first extensive search for the Higgs boson was conducted at the Large Electron-Positron Collider (LEP) at CERN in the 1990s.

THE LARGEST scientific instrument yet built came to life last week as opposing beams of matter and antimatter began surging through Europe's Large Electron-Positron Collider.

It would be similar in principle to a detector operating under Dr. Ting's direction at the Large Electron-Positron collider near Geneva, Switzerland, the largest existing accelerator in the world.

Hoorani joined CERN in 1989 where he carried out a large amount of research at CERN's Large Electron-Positron Collider or LEP.

On Friday, the scientists at the European Laboratory for Particle Physics sent a first beam of particles around the Large Electron-Positron Collider, a 17-mile circular tunnel under the French-Swiss border.

It would be built on top of an existing accelerator, the Large Electron-Positron collider or LEP, whose 17-mile tunnel runs hundreds of feet below fields and villages in Switzerland and France.

They were first observed by the experiments at the Large Electron-Positron Collider (ALEPH, DELPHI, L3 and OPAL).