Intersecting brane worlds—a path to the standard model?
By D. Lust. 2004
172 citations recorded by the source corpus.
In this paper we describe the general geometrical framework of brane world constructions in orientifolds of type IIA string theory with D6-branes wrapping 3-cycles in a Calabi–Yau 3-fold. These branes generically intersect at points on the internal space, and the patterns of intersections govern the chiral fermion spectra. We discuss how the open string spectra in intersecting brane models are constructed, how the standard model can be embedded, and also how supersymmetry can be realized in this class of string vacua. After the general considerations we restrict the discussion to the case of orbifold backgrounds with intersecting D6-branes and to the quintic Calabi–Yau manifold. Then, we discuss parts of the effective action of intersecting brane world models. Specifically, from the Born–Infeld action of the wrapped D-branes we compute the tree-level, D-term scalar potential, which is important for the stability of the considered backgrounds as well as for questions related to supersymmetry breaking. Second, we review the recent computation concerning gauge coupling unification and also concerning one-loop gauge threshold corrections in intersecting brane world models. Finally, we also discuss some aspects of proton decay in intersecting brane world models.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/b2ddc9ee1facf4e19c68d58e010a4aef6fcf4c02
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Citations in the corpus
- Four-dimensional string compactifications with D-branes, orientifolds and fluxes (2006, background): “We are trying to be comprehensive and pedagogic in the exposition of the topic, which makes some overlap with existing reviews unavoidable, notably with review articles on D-branes [2, 3], on orientifolds [65, 20], on D-brane model building [66, 67, 68, 69, 70, 51] (see also the PhD theses [71, 72, ”
- Gauged Supergravities. (2016, background): “In the “brane-world” constructions the “visible sector”, described by a Standard Model-like model, is realized on the world volume of a Dbrane or in the intersection of D-branes, where the gauge fields are constrained to propagate [42].”
- Flux compactifications in string theory: A Comprehensive review (2005, background): “D-branes can serve as ingredients in constructing four-dimensional standard-like models [8].”
- Lectures on F-theory compactifications and model building (2010, methodology): “in [2–4]) exploits furthermore the localisation of the gauge degrees of freedom along the D-branes, which are therefore of a different physical origin than the gravity sector in the bulk.”
- Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds (2007, methodology): “Introducing also a set of chirally intersecting and magnetised D7-branes, we find that, for vanishing VEVs for charged matter fields, the combination of F- and D-terms fixes the four-cycles at the boundary of the Kähler cone, where however the sizes of the instantons 3 In Appendix B, we will also pr”
- Getting just the supersymmetric standard model at intersecting branes on the Z(6) orientifold (2004, background): “For a recent overview about the actual status of D6-brane constructions see [56,57].”
- The statistics of supersymmetric D-brane models (2004, background): “It is known that these intersecting D-brane models are constrained by only fairly moderate consistency conditions [27,28,29], which still allow for a large number of solutions.”