scholarly journals GeneralizedCPandΔ(3n2)family symmetry for semidirect predictions of the PMNS matrix

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Gui-Jun Ding ◽  
Stephen F. King
Keyword(s):  
Pramana ◽  
2017 ◽  
Vol 89 (4) ◽  
Author(s):  
Palash B Pal ◽  
Pritibhajan Byakti
Keyword(s):  

2005 ◽  
Vol 20 (36) ◽  
pp. 2767-2774 ◽  
Author(s):  
ERNEST MA

If a family symmetry exists for the quarks and leptons, the Higgs sector is expected to be enlarged to be able to support the transformation properties of this symmetry. There are, however, three possible generic ways (at tree level) of hiding this symmetry in the context of the Standard Model with just one Higgs doublet. All three mechanisms have their natural realizations in the unification symmetry E6 and one in SO (10). An interesting example based on SO (10)×A4 for the neutrino mass matrix is discussed.


2015 ◽  
Vol 743 ◽  
pp. 172-179 ◽  
Author(s):  
Hajime Ishimori ◽  
Stephen F. King ◽  
Hiroshi Okada ◽  
Morimitsu Tanimoto
Keyword(s):  

2008 ◽  
Vol 2008 (05) ◽  
pp. 066-066 ◽  
Author(s):  
Stefan Antusch ◽  
Stephen F King ◽  
Michal Malinský
Keyword(s):  

Symmetry ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 156
Author(s):  
Bartosz Dziewit ◽  
Jacek Holeczek ◽  
Sebastian Zając ◽  
Marek Zrałek

Imposing a family symmetry on the Standard Model in order to reduce the number of its free parameters, due to the Schur’s Lemma, requires an explicit breaking of this symmetry. To avoid the need for this symmetry to break, additional Higgs doublets can be introduced. In such an extension of the Standard Model, we investigate family symmetries of the Yukawa Lagrangian. We find that adding a second Higgs doublet (2HDM) does not help, at least for finite subgroups of the U ( 3 ) group up to the order of 1025.


1994 ◽  
Vol 328 (3-4) ◽  
pp. 319-328 ◽  
Author(s):  
A.A Maslikov ◽  
S.M Sergeev ◽  
G.G Volkov

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