1. QCD 1972 Fritzsch # Gell-Mann

2. 2012:QCD 40 yearsconference in Oberwoelz, Austrian Alpsfritzsch@mppmu.mpg.de

3. Salzburg Vienna Alps Oberwoelz 80 km Graz Klagenfurt

4. fritzsch@mppmu.mpg.de

5. Weak Bosons Quarks - Leptons Composite Particles Harald Fritzsch LMU Munich

6. Standard Model: quarks - leptons - weakbosons ==> pointlike

7. - l i m i t s f r o m e x p e r i m e n t : radius of electron: radius of u/d-quark:

8. Standard Model two different types ofmassgeneration

9. mass by confinement QCD

10. protonmassfieldenergyofgluonsandquarks

11. -

12. - electroweak theory ??? origin of masses of ??? leptons quarks W-bosons ???????????????????????

13. ????????????? „Higgs“ mechanism??????????

14. - alternative: mass generation confinement QCD

15. weak bosons ? composite

16. - old references: Bjorken (1977) Fritzsch and Mandelbaum (1981) Abbott andFarhi (1981) Barbieri andMohapatra (1981) Fritzsch, Kogerlerand Schildknecht (1982) Lüst (1985) Calmetand Fritzsch (2000)

17. - new: H. Fritzsch - arXiv: 1010.1428 - arXiv: 1105.3354

18. rho – mesonsgauge bosons( Sakurai …)quark- antiquarkbound states(QCD)

19. weak bosons gauge bosons- SU(2) x U(1) -? bound states ?

20. - analogy

22. W ====>>> constituents

23. - lefthanded fermions

24. - haplos simple

25. - electric charges

26. -

27. - haplons confined by gauge force QHD

28. - Gauge group of QHD: SU(n) ( e.g. SU(3) )

29. - massscale of QHD

32. - QCD 1 GeV

33. - QCD + QED Dynamical mixing of meson and photon

34. - decay constant mixing parameter m

35. -

36. - mixing with photon m: mixing parameter ~ 3.1 MeV m = 0.09

37. - QCD +QED mass shift: 3.1 MeV 1 GeV

39. - mixing of W with photon m: mixing parameter

40. - Standard Model

41. - Standard Model ~10.4 GeV

42. - QCD + QED QHD+ QED ~10.4 GeV ~3.1 MeV

43. - W decay constant

44. experimental data: -

45. -

46. - -

47. - uncertainty: gaugegroupof QHD

48. -

49. standard model

50. composite model: