Six Flavors of Quarks (3) (3) Up charm top "卿数 (3)(3)(3) down strange bottom
Six Flavors of Quarks
Colors of Quarks Red, green, blue narks carr a color 26 Anti- quarks Intered. nti green antieblue caIry an anti-color Color Charge has nothing to do with the colors of visble light. We calleach charge a different color as a naming convention
Colors of Quarks
Why called Colors? ■ There are Three colors I Equal Mixing leads to white No Color) 1 Other Properties are NOT Affected a Dynamical roles? Unknown in 1960s
Why Called Colors? There are Three Colors Equal Mixing leads to (=No Color) Other Properties are NOT Affected Dynamical roles? Unknown in 1960’s white
Why Three Colors? Puzzle of Quark's Statistics R-ratio in e+e- Annihilation I Neutral Pion's Electromagnetic Decay 1 Electro-Weak Anomaly Cancellation 日■■■■■■■■■■■■■■■■
Why Three Colors ? Puzzle of Quark’s Statistics R-ratio in e+e- Annihilation Neutral Pion’s Electromagnetic Decay Electro-Weak Anomaly Cancellation ………………
R-ratio in e+e- Annihilation 10 6 QPM+QCD+Z eZ A Peak 轿4 QPM 2 Resonances D CESR ■ TRISTAN4DOR|s PETRA V SPEAR ADONE 10 102 10 Q2(GeV2 8290A34
R-ratio in e+e- Annihilation