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LEP
(redirected from Large Electron-Positron Collider)

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.06 sec.
LEP
low egg passage, with reference to virus attenuation usually for vaccine production.


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Vivid but sparse signs of the so-called Higgs boson at the Large Electron-Positron Collider (LEP) in Switzerland have also sparked a desperate race against time to catch further glimpses before researchers pull the plug on the 11-year-old machine.
Going back through the data from an earlier run of CERN's Large Electron-Positron Collider (LEP), researchers have found no evidence of such extradimensional influences at up to an energy of 4 TeV, Cheung told SCIENCE NEWS.
By observing the numerous ways in which a particle known as the Z [degree] can decay into other particles, another huge group of researchers working at the Large Electron-Positron collider at the European Center for Particle Physics in Geneva, Switzerland, has tentatively set an upper limit of roughly 190 GeV on the top quark's mass.
 
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