A D-brane alternative to unification

By I. Antoniadis, E. Kiritsis, T. Tomaras. 2000

221 citations recorded by the source corpus.

We propose a minimal embedding of the Standard Model spectrum in a D-brane configuration of type I string theory. The SU(3) color and SU(2) weak interactions arise from two different collections of branes. The model is neither grand unified nor supersymmetric but it naturally leads to the right prediction of the weak angle for a string scale of the order of a few TeV. It requires two Higgs doublets and guarantees proton stability.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/1985e1b06d3e44756bc3dce0826cc470c734d735

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In Nuclear and High Energy Physics

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

Citations in the corpus

• Scattering of gauge, matter, and moduli fields from intersecting branes (2004, background): “If the full open string vertex operator or only its internal part represents just half of an analogous closed string vertex operator, for that particular piece of the full correlator a similar computation on the sphere may be borrowed.”
• Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology (2008, methodology): “These include the D-branes at singularities (so called bottom-up) models [27] (in the context of type I string theory a similar model-building strategy was employed in [28]).”
• Orientifolds, hypercharge embeddings and the Standard Model (2006, methodology): “Some of these are similar to the models of [4], but not identical.”
• 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.”
• Noncommutative compactifications of type I strings on tori with magnetic background flux (2000, background): “2 For other recent bottom up attempts to obtain GUT’s and the standard model from branes see [ 25 ].”
• Four-dimensional string compactifications with D-branes, orientifolds and fluxes (2006, background): “(Alternative D-brane realizations of the Standard Model can be found in [182, 183, 184].”
• Anomalies, anomalous U(1)'s and generalized Chern-Simons terms (2006, unknown): “Contents”