scholarly journals Cabibbo angle in a six quark gauge model. [Mass matrices]

1978 ◽  
Author(s):  
T. Kitazoe ◽  
K. Tanaka
1992 ◽  
Vol 07 (26) ◽  
pp. 2429-2435 ◽  
Author(s):  
GIAN F. GIUDICE

A new ansatz for quark and lepton mass matrices is proposed in the context of supersymmetric grand unified theories. The 13 parameters describing fermion masses and mixings are determined in terms of only 6 free parameters, allowing 7 testable predictions. The values of Vus, Vcb, Vub, mu, md, ms and mb are then predicted as a function of the 3 charged lepton masses, mc, mt and tan β, the ratio of Higgs vacuum expectation values. In particular the Cabibbo angle and ms/md are determined in terms of only lepton masses. All predictions are in very good agreement with experiments.


1991 ◽  
Vol 06 (26) ◽  
pp. 4753-4762
Author(s):  
KRISHNANATH BANDYOPADHYAY ◽  
DEBASIS BHOWMICK ◽  
MURARI MOHAN KUNDU ◽  
ASIM K. RAY

We have studied the quark-mass matrices, Cabibbo mixing and CP violation in the two-generation SU(2)L × SU(2)R × U(I)B−L × U(1)H model. It is shown that the model leads to phenomenologically consistent quark-mass matrices but cannot accommodate CP violation in spite of the right-handed and horizontal gauge interactions. The absence of Cabibbo mixing for leptons is explained, but for the quark sector it is shown to be ≃0.21.


1978 ◽  
Vol 18 (9) ◽  
pp. 3476-3481 ◽  
Author(s):  
T. Kitazoe ◽  
K. Tanaka
Keyword(s):  

1979 ◽  
Vol 24 (12) ◽  
pp. 443-448 ◽  
Author(s):  
M. D’Anna ◽  
A. Masiero

2005 ◽  
Vol 20 (06) ◽  
pp. 1234-1243 ◽  
Author(s):  
P. RAMOND

We relate the MNS and CKM mixing matrices using ideas from grand unification. We catalog models in terms of the family symmetries of the down quark mass matrices, and emphasize the role of the Cabibbo angle in the lepton mixing matrix. We find a large class of models with an observable CHOOZ angle [Formula: see text].


1983 ◽  
Vol 121 (5) ◽  
pp. 326-330 ◽  
Author(s):  
G. Ecker
Keyword(s):  

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