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Science 19 July 1996:
Vol. 273. no. 5273, pp. 306 - 0
DOI: 10.1126/science.273.5273.306
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News & Comment

Andrew Watson

Just 2 days after restarting their main accelerator following a major upgrade, physicists at CERN, Europe's particle physics center near Geneva, witnessed their first creation of pairs of so-called W particles, the charged carriers of the weak nuclear force, which controls some types of radioactivity as well as the nuclear burning of the sun. The upgraded Large Electron-Positron (LEP) collider, dubbed LEP2, was designed to produce W pairs, and physicists can now study the particles in detail. At this higher energy, physicists will also be on the lookout for two long-sought-after quarries: the Higgs particle, linked to the mechanism which gives particles mass; and supersymmetry, a unifying principle in many attempts to combine all of nature's forces.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)