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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 H. Fritzsch LMU Munich
c u t d s b flavor mixing quarks
flavor mixing angles - quark masses
mass matrices texture zero H. Fritzsch S. Weinberg 1978
6 quarkmasses 3 flavormixingangles
flavormixing -leptons-
H. Fritzsch - P. Minkowski Physics Letters 62B, 76 (1976) neutrino oscillations
neutrino mixing matrix (==> CKM Matrix)
normal mass hierarchy ( no inversion )
0.05 eV - 0.01 eV 0.01 eV - 0.004 eV -
???????? ??????? neutrinomasses verysmall ???????? ???????
neutrino Majorana mass ???
Neutrinoless Double Beta decay
e.g. !! not observed !!
Laboratori Nazionali del Gran Sasso
Cuore experiment effective Majorana neutrino mass < 0.140 eV
Gerda experiment
gerda experiment effective Majorana neutrino mass < 0.11eV…0.25 eV
eV experiment:
6 quarkmasses 6 leptonmasses 6 flavormixingangles
neutrinomasses m(1) ~ 0.004 eV m(2) ~ 0.01 eV m(3) ~ 0.05 eV
neutrinos ? Dirac mass ? ? Majorana mass ?
double betadecayexperiments effective Majorana neutrino mass m < 0.14 eV Expected: 0.016 eV !!!