scholarly journals Non-Abelian discrete family symmetry to soften the SUSY flavor problem and to suppress proton decay

2006 ◽  
Vol 743 (1-2) ◽  
pp. 74-103 ◽  
Author(s):  
Etsuko Itou ◽  
Yuji Kajiyama ◽  
Jisuke Kubo
Keyword(s):  
Proton Decay ◽  
Family Symmetry ◽  
Flavor Problem ◽  
Discrete Family

A4 SYMMETRY AND NEUTRINOS

2008 ◽  
Vol 23 (21) ◽  
pp. 3366-3370 ◽  
Author(s):  
ERNEST MA
Keyword(s):  
Family Symmetry ◽  
History Of ◽  
Discrete Family

I recount briefly the history of neutrino tribimaximal mixing and the use of the discrete family symmetry A 4 in obtaining it.

scholarly journals ANOMALY OF DISCRETE FAMILY SYMMETRIES AND GAUGE COUPLING UNIFICATION

2007 ◽  
Vol 16 (05) ◽  
pp. 1463-1478
Author(s):  
TAKESHI ARAKI
Keyword(s):  
Planck Scale ◽  
Gauge Coupling ◽  
Baryon Number ◽  
Discrete Symmetry ◽  
Lepton Number ◽  
Supersymmetric Model ◽  
Family Symmetry ◽  
Fundamental Scale ◽  
Integral Measure ◽  
Discrete Family

Anomaly of a discrete symmetry is defined as the Jacobian of the path-integral measure. Assuming that anomaly at low energy is cancelled by the Green–Schwarz (GS) mechanism at a fundamental scale, we investigate possible Kac–Moody levels for anomalous discrete family symmetries. As the first example we consider discrete abelian Baryon number and Lepton number symmetries in the minimal supersymmetric standard model with see-saw mechanism, and find that the ordinary unification of gauge couplings is not consistent with the GS conditions, indicating a possible existence of further Higgs doublets. Next we consider the recently proposed supersymmetric model with Q6 family symmetry. In this model, the GS conditions are such that the gauge coupling unification appears close to the Planck scale.

scholarly journals Discrete family symmetry from F-theory GUTs

2014 ◽  
Vol 2014 (9) ◽  
Author(s):  
Athanasios Karozas ◽  
Stephen F. King ◽  
George K. Leontaris ◽  
Andrew K. Meadowcroft
Keyword(s):  
Family Symmetry ◽  
Discrete Family

PROTON DECAY IN SO(10) SUPERSYMMETRIC GRAND UNIFIED THEORIES

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 846-848
Author(s):  
RODOVAN DERMÍŠEK
Keyword(s):  
Parameter Space ◽  
Proton Decay ◽  
Low Energy ◽  
Unified Theory ◽  
Grand Unified Theory ◽  
Family Symmetry ◽  
Energy Data ◽  
Grand Unified Theories ◽  
Unified Theories ◽  
Proton Lifetime

We calculate the proton lifetime in a SO(10) supersymmetric grand unified theory [SUSY GUT] with U(2) family symmetry. This model fits the low energy data, including the recent data for neutrino oscillations. We discuss the predictions of this model for the proton lifetime in light of recent SuperKamiokande results which significantly constrain the SUSY parameter space of the model.

scholarly journals Neutrino tri-bi-maximal mixing from a non-Abelian discrete family symmetry

2007 ◽  
Vol 648 (2-3) ◽  
pp. 201-206 ◽  
Author(s):  
I. de Medeiros Varzielas ◽  
S.F. King ◽  
G.G. Ross
Keyword(s):  
Family Symmetry ◽  
Discrete Family

scholarly journals Discrete family symmetry, Higgs mediators and θ 13

2012 ◽  
Vol 2012 (12) ◽  
Author(s):  
Ivo de Medeiros Varzielas ◽  
Graham G. Ross
Keyword(s):  
Family Symmetry ◽  
Discrete Family
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