F-SU(5)

We construct three flipped SU(5)×U(1)X models from F-theory, and consider two such models from free fermionic string model building. To achieve the decoupling scenario in F-theory models and the string-scale gauge coupling unification in free fermionic models, we introduce vector-like particles at t...

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Bibliographic Details
Published in:Physics letters. B 2009-06, Vol.677 (5), p.322-325
Main Authors: Jiang, Jing, Li, Tianjun, Nanopoulos, Dimitri V., Xie, Dan
Format: Article
Language:English
Subjects:
Exact sciences and technology
Nuclear physics
Physics
The physics of elementary particles and fields
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Summary:We construct three flipped SU(5)×U(1)X models from F-theory, and consider two such models from free fermionic string model building. To achieve the decoupling scenario in F-theory models and the string-scale gauge coupling unification in free fermionic models, we introduce vector-like particles at the TeV scale that can be observed at the Large Hadron Collider. We study gauge coupling unification, and find that proton decay is within the reach of the future Hyper-Kamiokande experiment. In these models, the doublet–triplet splitting problem and monopole problem can be solved, the neutrino masses and mixings can be explained via the double seesaw or seesaw mechanism, the observed baryon asymmetry can be obtained through leptogenesis, the hybrid inflation can be realized, and the correct cosmic primordial density fluctuations can be generated.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2009.05.012