Fermion Mass Hierarchy in the Grand Unified Theory on S
نویسندگان
چکیده
We suggest a simple grand unified theory where the fifth dimensional coordinate is compactified on an S1/(Z2 × Z ′ 2) orbifold. This model is based on the supersymmetric flipped SU(5) × U(1) grand unified theory, which can realize not only the triplet-doublet splitting but also the natural fermion mass hierarchies. The triplet-doublet splitting is realized by S1/(Z2 × Z ′ 2) orbifolding, which also reduces the gauge group as SU(5) × U(1) → SU(3)c ×SU(2)L ×U(1)Z ×U(1)X . The suitable fermion mass hierarchies are generated by integrating out extra three sets of vector-like heavy fields which can propagate in five dimensions. The radiative corrections to can reduce the gauge group to SU(3)c ×SU(2)L ×U(1)Y by a simple extension of the model.
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متن کاملar X iv : h ep - p h / 01 07 19 0 v 2 1 9 Ju l 2 00 1 1 Fermion Mass Hierarchy in the Grand Unified Theory on S
We suggest a simple grand unified theory where the fifth dimensional coordinate is compactified on an S1/(Z2 × Z ′ 2) orbifold. This model is based on the supersymmetric flipped SU(5) × U(1) grand unified theory, which can realize not only the triplet-doublet splitting but also the natural fermion mass hierarchies. The triplet-doublet splitting is realized by S1/(Z2 × Z ′ 2) orbifolding, which ...
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متن کاملar X iv : h ep - p h / 01 07 19 0 v 3 2 5 Ju l 2 00 1 1 Fermion Mass Hierarchy in the Grand Unified Theory on S
We suggest a simple grand unified theory where the fifth dimensional coordinate is compactified on an S1/(Z2 × Z ′ 2) orbifold. This model is based on the supersymmetric flipped SU(5) × U(1) grand unified theory, which can realize not only the triplet-doublet splitting but also the natural fermion mass hierarchies. The triplet-doublet splitting is realized by S1/(Z2 × Z ′ 2) orbifolding, which ...
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