ALEPH is a high energy experiment, made to explore, in a first period, the physics of the neutral weak interaction, in a second, the physics of the charged weak interaction. It may also be the way to discover new phenomena.
ALEPH is one of the four experiments installed at the LEP e+ e- collider of CERN. It is at the same time, a collaboration of hundreds of physicists, mostly from Europe but also from China and the USA, and a particle detector.
The detector has been in operation from 1989 to 1995 in the study of electron-positron collisions at the Z resonance. Since the end of 1995 it started to operate at higher energies, aiming for the WW threshold.
You can find more professional information about Aleph and its environment in the following pages: