quarks three families
Standard - Theory
III II I
quarks only 45% of total momentum !
momentum
triangle diagram - good agreement with experiment
factor 9 too small in decay rate
Electron-positron-annihilation
20 proton
quark model 23 color factor 3 in amplitude => experiment
25
exact symmetry SU(3)
color singlets
Johannes Paul II
8 massless gauge bosons gluons
electrodynamics
gluon chromodynamics
35
gluons: 55% of total momentum !
gluons
quark gluongluon
46
60
61 Feynman
e(-)e(+)
Elektron Positron Quark Antiquark
Meson Meson
e(-)e(+)
66
68
Large Hadron Collider LHC
quark – gluon plasma Big bang
electromagnetic interaction Van-der-Waals force atoms molecules
strong interaction nuclear force mesons baryons atomic nuclei