OPAL at 200 GeV and above

First e+ e- collisions at 204 GeV : 7 November 1999

Shown to the right is a candidate event of the type e+ e- annihilates to give a quark and antiquark. These in turn form into two jets of hadrons, seen as two sprays of particles in the detector.

Events from e+ e- collisions at 200 GeV during 1999

Some of the first events recorded at 200 GeV. Here are the first W+W- events seen by OPAL at 200 GeV centre-of-mass energy. Follow the PS/GIF button links to see full-sized versions of the events suitable for printing. The quality of the larger pictures is much better than the thumbnail versions included here.

The OPAL Webweavers and M.Thomson, last updated 11 January 2000