D-branes at Singularities, Compactification, and Hypercharge
Matthew Buican, Dmitry Malyshev, David R. Morrison, Martijn Wijnholt, Herman Verlinde
Abstract
We report on progress towards the construction of SM-like gauge theories on the world-volume of D-branes at a Calabi-Yau singularity. In particular, we work out the topological conditions on the embedding of the singularity inside a compact CY threefold, that select hypercharge as the only light U(1) gauge factor. We apply this insight to the proposed open string realization of the SM of hep-th/0508089, based on a D3-brane at a dP8 singularity, and present a geometric construction of a compact Calabi-Yau threefold with all the required topological properties. We comment on the relevance of D-instantons to the breaking of global U(1) symmetries.
Create a lesson
Related papers
Topologically induced deformations of differential forms
J. M. Hoff da Silva, J. M. B. Matzenbacher, R. da Rocha
Accretion, mergers, and metastability of fuzzy spheres in a three-matrix model
M. Hrmo, S. Kováčik, K. Magdolenová et al.
Anomaly Matching between Topological Superconductors and N=8 Supergravity
Christopher W. Murphy
Higher anomalies, compressing SPTs and cohomology operations
Shani Nadir Meynet, Elias Riedel Gårding
Exploring thermal order in conformal theories with multiple scalars coupled to an O(N) vector field
Soumyadeep Chaudhuri, Bilal Hawashin, Eliezer Rabinovici et al.
Subleading Collinear Limits of Yang-Mills Amplitudes from Gravity
Jin Dong, Stephan Stieberger