The "Aachen event" turns 50

Aachen event Copyright: © CERN-EX-60100-1/ Kurt Riesselmann

The first leptonic neutral current event spotted with Gargamelle. It shows an incoming neutrino (not visible) arriving from below where it then interacts with an electron (visible track). The interaction radiates photons and then produces electron–positron pairs. Here in Aachen we like to call it the "Aachen event", because it was discovered in Aachen in the group of Prof. Helmut Faissner and Dr. Klaus Schulze. 

  Scanning Copyright: © NN

Klaus Schulz and Helmut Faissner together with staff at the scanning table onto which the photographic bubble chamber images were projected.

CERN Courier