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LEP Collider Moves Beyond the Z0

FEB 01, 1996
Last November, CERN’s LEP collider looked at the highest‐energy e+e collisions yet achieved and saw no serious challenges to the standard model.

Last year, after six years of precisely mapping out the physics of Z0‐boson production and decay, CERN’s Large Electron‐Positron collider completed its role as the Z0 factory called LEP 1 and began to metamorphose into LEP 2—a W+W or W‐pair factory. The transformation, scheduled for completion in June, involves replacing 32 of the conventional copper 1.4‐mega‐volt/meter accelerating elements in the 27‐km‐circumference collider with superconducting cavities having an accelerating gradient of 6.0 MV/m.

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This Content Appeared In
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Volume 49, Number 2

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