A realistic world from intersecting D6-branes
نویسندگان
چکیده
منابع مشابه
A Brane World Model with Intersecting Branes
A brane world model is investigated, in which there are many branes that may intersect and self intersect. One of the branes, being a 3-brane, represents our spacetime, while the other branes, if they intersect our brane world, manifest themselves as matter in our 3-brane. It is shown that such a matter encompasses dust of point particles and higher dimensional p-branes, and all those objects f...
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We construct three quasi-supersymmetric G3 GUT models with S3 symmetry and gauge coupling unification from intersecting D6-branes on Type IIA orientifolds. The Standard Model fermions and Higgs doublets can be embedded into the bifundamental representations in these models, and there is no any other unnecessary massless representation. Especially in Model I with gauge group U(4)3, we just have ...
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We propose three supersymmetric G3 models with S3 symmetry and minimal stacks of D6-branes from the intersecting D6-branes on Type IIA orientifolds. In those models, the RR tadpole can be cancelled and the 4-dimensional N = 1 supersymmetry is preserved elegantly. Phenomenologically, there exists the gauge coupling unification, the Standard Model fermions and Higgs doublets can be embedded into ...
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The D6-brane spectrum of type IIA vacua based on twisted tori T̃ 6 and RR background fluxes is analyzed. In particular, we compute the torsion factors of Hn(T̃ 6,Z) and describe the effect that they have on D6-brane physics. For instance, the fact that H3(T̃ 6,Z) contains ZN subgroups explains why RR tadpole conditions are affected by geometric fluxes. In addition, the presence of torsional (co)ho...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2008
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2008.06.024