Supersymmetric three family SU(5) grand unified models from type IIA orientifolds with intersecting D6-branes

By M. Cvetič, Ioannis Papadimitriou, Gary Shiu. 2002

137 citations recorded by the source corpus.

Abstract We construct some N =1 supersymmetric three-family SU (5) grand unified models from type IIA orientifolds on T 6 /( Z 2 × Z 2 ) with D6-branes intersecting at general angles. These constructions are supersymmetric only for special choices of untwisted moduli. We show that within the above class of constructions there are no supersymmetric three-family models with 3 copies of 10 -plets unless there are simultaneously some 15 -plets. We systematically analyze the construction of such models and their spectra. The M-theory lifts of these brane constructions become purely geometrical backgrounds: they are singular G 2 manifolds where the grand unified gauge symmetries and three families of chiral fermions are localized at codimension 4 and codimension 7 singularities respectively. We also study some preliminary phenomenological features of the models.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f936c3f8ee5e2ecba7064ea0ae56ba8cce5026b4

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In Nuclear and High Energy Physics

1. Ralph Blumenhagen
2. T. Weigand
3. D. Lust
4. M. Cvetič
5. Thomas W. Grimm
6. S. Stieberger
7. Gary Shiu
8. B. Kors

Citations in the corpus

• TOWARD REALISTIC INTERSECTING D-BRANE MODELS (2005, methodology): “As mentioned above, within this framework the systematic search for threefamily SU(5) Grand Unified Models [101] produced three family models which however necessarily also contain three copies of 15-plets.”
• Four-dimensional string compactifications with D-branes, orientifolds and fluxes (2006, background): “239 5.4.2 Example: MSSM-like model on T6/Z2 × Z2 . . . . . . . . . . .”
• MODELS OF PARTICLE PHYSICS FROM TYPE IIB STRING THEORY AND F-THEORY: A REVIEW (2012, unknown): “pFor work in this direction see [111–115].”
• Getting just the supersymmetric standard model at intersecting branes on the Z(6) orientifold (2004, background): “Nevertheless, the goal so far has been achieved only with moderate success: either the constructions are plagued with a large amount of exotic chiral matter, as in the Z2×Z2 orientifold of [28–33], which might be cured by a confinement of the exotic chiral matter into composite fields coming from th”
• GUTs in Type IIB Orientifold Compactifications (2008, methodology): “At least locally, each such field can be identified with an element of an appropriate bundle valued cohomology group on the internal mani- 10 fold and the cycles wrapped by the D-branes.”
• Orientifolds, hypercharge embeddings and the Standard Model (2006, background): “By contrast, the models found in [33] contain additional (15)’s of SU(5).”
• Proton stability in grand unified theories, in strings and in branes (2006, background): “An interesting class of models are those based on intersecting D branes [355, 356, 357, 358, 359] and attempts have been made to build semi-realistic models based on these [360, 361, 362, 363, 364, 365], and issues of gauge coupling unification, soft breaking and possible applications to the real wo”
• The statistics of supersymmetric D-brane models (2004, methodology): “In section 5 we come to the physically most interesting example and compute the same distribution for the case of intersecting branes on the T 6/Z Z2 × Z Z2 orientifold [28, 35 ].”