函charm(c) In 1974,Physicists at SLAC and BNL discover independently a new particle that contains a new kind of quark,called the charm quark.ichter (SLAC)and Ting (BNL)receive the 1976 Nobel Prize. B.Richter, 丁肇中， SLAC,1931- MIT,1936-
Ìcharm (c) In 1974, Physicists at SLAC and BNL discover independently a new particle that contains a new kind of quark, called the charm quark. Richter (SLAC) and Ting (BNL) receive the 1976 Nobel Prize. B.Richter, SLAC,1931- 丁肇中, MIT, 1936-
函bottom(b): o In 1977,Led by Lederman,a group of scientists at Fermilab discover the upsilon,a particle containing a bottom quark and an anti-bottom quark. top (t): ● In 1995,The CDF and DO collaborations at Fermilab announce the discovery of the top quark,an elementary particle as heavy as a gold atom
Ìbottom (b) : l In 1977, Led by Lederman, a group of scientists at Fermilab discover the upsilon, a particle containing a bottom quark and an anti-bottom quark. l Ì top (t) : l In 1995, The CDF and D0 collaborations at Fermilab announce the discovery of the top quark, an elementary particle as heavy as a gold atom
G.'t Hooft and M.J.G.Veltman using calculational techniques to calculate the indirect effects of the top quarks on other measurements.They recognized that the top quark must be much more massive than any of the other quarks,around 20 to 30 times heavier than the previous heaviest quark,the b quark. They received The Nobel Prize in 1999
G. 't Hooft and M.J.G. Veltman using calculational techniques to calculate the indirect effects of the top quarks on other measurements. They recognized that the top quark must be much more massive than any of the other quarks, around 20 to 30 times heavier than the previous heaviest quark, the b quark. They received The Nobel Prize in 1999
jet et Calorimeter Proton Antiproton Prcton Antipr jot jet #3 from up quark Lfor段W jet 1 from B decay Discoveries at Fermilab The Top Quark jet#2 fromB decay jet 4 from antidown quark
Discoveries at Fermilab - The Top Quark
Tevatron Collider Fermilab Tevatron Collider is the highest energy collider currently in operation in the world Proton and anti-proton beams were accelerated to 900 Gev each and were brought to collide at 2 interaction points (CDF and DO) Chieago,l New Muonlab Proton Area Meson CDF Area Main Ring
Tevatron Collider ollider Fermilab Tevatron Collider is the highest energy collider currently in operation in the world Proton and anti-proton beams were accelerated to 900 GeV each and were brought to collide at 2 interaction points (CDF and DØ)