sentences:  James Allen employed his suggestion and found evidence for the existence of the neutrino in 1942.Frederick Reines and Clyde Cowan detected the neutrino via the inverse beta-decay reaction in 1956, for which, forty years later, they were awarded the 1995 Nobel Prize in Physics.Wang also led a group which discovered the anti-sigma minus hyperon particle at the Joint Institute for Nuclear Research, Dubna, Russia in 1959.