X hits on this document

89 views

0 shares

0 downloads

0 comments

7 / 35

100 Years of Science

D. Carrigan - Fermilab                                                        July 7, 2004

7

Chronology – mostly experimental discoveries

1897Using a cathode ray tube Thomson discovers the electron at the Cavendish

1931Anderson discovers the positron at Cal Tech

1934Fermi develops theory of beta decay

1937Neddermeyer and Anderson discover the muon in a cosmic-ray experiment

1951First observation of strange particles in cosmic-ray experiments.

1955Segre and Chamberlain discover the antiproton at Berkeley.

1956Cowan and Reines detect the first neutrino at Savannah River.

1956Gell-Mann explains kaon lifetime with the strangeness

1964At Brookhaven Cronin and Fitch find kaons violate CP symmetry

1974Physicists at SLAC and BNL independently discover charm quark

1977The upsilon, a particle containing a bottom quark, is discovered at Fermilab

1979Gluon observed at DESY.

1983W and Z bosons observed at CERN

1995CDF and D0 discover top quark at Fermilab

Document info
Document views89
Page views89
Page last viewedFri Dec 09 13:33:14 UTC 2016
Pages35
Paragraphs417
Words1912

Comments