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Flavor Mixing Neutrino Masses Neutrino Oscillations

Flavor Mixing Neutrino Masses Neutrino Oscillations. H. Fritzsch LMU Munich. c. u. t. d. s. b. flavor mixing quarks. CKM - matrix. Experiment. : H. Fritzsch – Z. Xing. experiments. flavor mixing angles. -. quark masses. mass matrices. texture zero. H. Fritzsch

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Flavor Mixing Neutrino Masses Neutrino Oscillations

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  1. Flavor Mixing Neutrino Masses Neutrino Oscillations H. Fritzsch LMU Munich

  2. c u t d s b flavor mixing quarks

  3. CKM - matrix

  4. Experiment

  5. :H. Fritzsch – Z. Xing

  6. experiments

  7. flavor mixing angles - quark masses

  8. mass matrices texture zero H. Fritzsch S. Weinberg 1978

  9. -

  10. 6 quarkmasses 3 flavormixingangles

  11. flavormixing -leptons-

  12. neutrino mixing

  13. H. Fritzsch - P. Minkowski Physics Letters 62B, 76 (1976) neutrino oscillations

  14. neutrino mixing matrix (==> CKM Matrix)

  15. Kamiokande - SNO

  16. texture zeros

  17. Experiment

  18. normal mass hierarchy ( no inversion )

  19. 0.05 eV - 0.01 eV 0.01 eV - 0.004 eV -

  20. DAYA BAY

  21. ???????? ??????? neutrinomasses verysmall ???????? ???????

  22. Ettore Majorana (1906 – 1938)

  23. neutrino Majorana mass ???

  24. neutrinoless double beta decay

  25. Neutrinoless Double Beta decay

  26. e.g. !! not observed !!

  27. Laboratori Nazionali del Gran Sasso

  28. Cuore Experiment

  29. Cuore experiment effective Majorana neutrino mass < 0.140 eV

  30. Gerda experiment

  31. gerda experiment effective Majorana neutrino mass < 0.11eV…0.25 eV

  32. relevant mass term eV

  33. eV experiment:

  34. Conclusions

  35. texture zeros

  36. 6 quarkmasses 6 leptonmasses 6 flavormixingangles

  37. neutrinomasses m(1) ~ 0.004 eV m(2) ~ 0.01 eV m(3) ~ 0.05 eV

  38. neutrinos ? Dirac mass ? ? Majorana mass ?

  39. double betadecayexperiments effective Majorana neutrino mass m < 0.14 eV Expected: 0.016 eV !!!

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