Flavor Mixing of Quarks and Neutrinos
63
Flavor Mixing Flavor Mixing of of Quarks and Quarks and Neutrinos Neutrinos H. Fritzsch H. Fritzsch LMU Munich LMU Munich
description
Flavor Mixing of Quarks and Neutrinos. H. Fritzsch LMU Munich. W. Pauli: 1930 Neutrino mass ~ m(e). 1956: maximal parity violation neutrinos massless. 1998: Y. Totsuka … (Kamioka) neutrino oscillations. neutrinos massive. -. texture zero - PowerPoint PPT Presentation
Transcript of Flavor Mixing of Quarks and Neutrinos
Flavor Mixing of Flavor Mixing of Quarks and Quarks and
NeutrinosNeutrinosH. Fritzsch H. Fritzsch LMU MunichLMU Munich
W. Pauli: 1930 Neutrino mass ~ m(e)
1956:1956:maximal parity maximal parity
violationviolation
neutrinos neutrinos masslessmassless
1998:
Y. Totsuka …(Kamioka)
neutrino oscillations
III
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New parametrization:New parametrization:
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tan /d d sm m
tan /u u cm m
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tan /d d sm m
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tan /u u cm m
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Exp 1.14.5:
7.00.5
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Exp 6.27.11:
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23232 104.2 eVm
25221 106.7 eVm
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Observation:Observation:
oo 45__33
12.004.021 42.0/
mm
25221 108 eVm
23322 104.2 eVm
:
42.0/ 21 mm
m(1) = ( 0.004 +/- 0.0012 ) m(1) = ( 0.004 +/- 0.0012 ) eVeV
m(2) = ( 0.011 +/- 0.002 ) m(2) = ( 0.011 +/- 0.002 ) eVeV
m(3) = ( 0.051 +/- 0.007 )eV m(3) = ( 0.051 +/- 0.007 )eV
12
3
e
321
321
321
VVV
VVV
VVV
Veee
0695.0tan
m
mel
oat
o 5238
atleV sinsin3
006.0049.0sin 133 eV
0022.00096.02sin 132
0022.00096.02sin 132
Neutrinoless Double Beta Neutrinoless Double Beta DecayDecay
332211. mVmVmVm eeeeff
.........................................
012.00025.00064.00035.0
321
.
effm
0 0
0
A
A C B
B D
0 0
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A C B
B D
neutrino masses:neutrino masses:
m(1)/m(2)=0.42, m(2)/m(3)=0.19m(1)/m(2)=0.42, m(2)/m(3)=0.19
m(1): 0.0041 eV m(1): 0.0041 eV m(2): 0.0097 eVm(2): 0.0097 eVm(3): 0.051 eVm(3): 0.051 eV
neutrinoless double neutrinoless double beta decay: beta decay:
improvement by factor improvement by factor 20 necessary20 necessary
05.03 eV
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