Exceptional supersymmetric standard models with non-abelian discrete family symmetry
نویسندگان
چکیده
منابع مشابه
Exceptional Supersymmetric Standard Model
We discuss some phenomenological aspects of an E6 inspired supersymmetric standard model with an extra U(1)N gauge symmetry under which right-handed neutrinos have zero charge, allowing a conventional see-saw mechanism. The μ problem is solved in a similar way to the NMSSM, but without the accompanying problems of singlet tadpoles or domain walls. The above exceptional supersymmetric standard m...
متن کاملThe Constrained Exceptional Supersymmetric Standard Model
We propose and study a constrained version of the Exceptional Supersymmetric Standard Model (E6SSM), which we call the cE6SSM, based on a universal high energy scalar mass m0, trilinear scalar coupling A0 and gaugino mass M1/2. We derive the Renormalisation Group (RG) Equations for the cE6SSM, including the extra U(1)N gauge factor and the low energy matter content involving three 27 representa...
متن کاملNeutrino tri-bi-maximal mixing from a non-Abelian discrete family symmetry
The observed neutrino mixing, having a near maximal atmospheric neutrino mixing angle and a large solar mixing angle, is close to tri-bi-maximal. We argue that this structure suggests a family symmetric origin in which the magnitude of the mixing angles are related to the existence of a discrete non-Abelian family symmetry. We construct a model in which the family symmetry is the non-Abelian di...
متن کاملHybrid natural inflation from non Abelian discrete symmetry
A spontaneously broken global discrete symmetry may have pseudo Goldstone modes associated with the spontaneous breaking of the approximate continuous symmetry of the low dimension terms in the Lagrangian. These provide natural candidates for an inflaton that can generate slow roll inflation. We show that, in the case of a non Abelian discrete symmetry, the pseudo Goldstone modes readily couple...
متن کاملNon-Abelian Flavor Symmetry
It is shown that the ratio of branching ratios in Higgs boson decay r = Γ(H → τ+τ−)/Γ(H → μ+μ−) in a simplified (T ′ × Z2) model is (r)T ′×Z2 ≃ 0.001. This prediction is on a footing with the successful one in (s, d) mixing, tan 2Θ12 = 1 3( √ 2). This value for r differs from that of the minimal standard model by a very large factor (over 250,000) and can provide a smoking gun for (T ′ ×Z2) fla...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2008
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2008/05/008