JackSteinberger was born in Bad Kissingen (Germany) in 1921, and in 1934 went to the United States as part of a programme for refugee children fleeing the Nazis.
JackSteinbergerís experiment at CERN, which extended until 1976, produced a series of important results that confirmed the theoretical model of weak interaction, which underlies the radioactive decay of the atomic nucleus.
In 1983, JackSteinberger became the spokesman for a collaboration of 400 physicists engaged in the construction of the Large Electron Positron Collider (LEP), the world's largest particle accelerator.