CERN Accelerating science

A colour treated picture of the computer reconstruction of the real particle tracks emerging from a high energy proton-antiproton collision recorded in the UA1 detector at the SPS (converted to act as a collider). This picture shows the production of a Z particle that has decayed into a high energy electron and positron flying off in opposite directions (in yellow). The UA1 detector ran on the SPS accelerator at CERN between 1981 and 1993.

Representation artificiellement coloree de la reconstitution par ordinateur des traces des particules issues d'une collision proton-antiproton a haute energie enregistree dans le detecteur UA1 du SPS (transforme en collisionneur). Cette representation montre la production d'une particule Z qui s'est desintegree en un electron et un positon de haute energie jaillissant dans des sens opposes (representes en jaune).

Keywords: CERN50; UA1; Z0
Related links:
CERN Courier vol 44 no 8 : October 2004
Original ref.: PI-37-7-92/A