Murray Gell-Mann (b.1929),US physicist and Nobel Laureate. Educated at Yale and the Massachusetts Institute of Technology,Gell-Mann had a doctorate by the age of 22. Two years later,he introduced the concept of 'strangeness' as a new quantum number,conserved in strong nuclear interactions. The theory allowed the grouping of particle types according to their strangeness and charge,and predicted a particle called the omega minus which was observed in 1964. Gell-Mann introduced the idea of quarks with George Zweig,and later worked with Feynman on neutral currents. In 1969 he received the Nobel Prize for Physics. Photographed at CERN in 1979 | |
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