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  D-branes at Singularities, Compactification, and Hypercharge

Buican, M., Malyshev, D., Morrison, D. R., Wijnholt, M., & Verlinde, H. (2007). D-branes at Singularities, Compactification, and Hypercharge. Journal of High Energy Physics, 2007(1): 107. doi:10.1088/1126-6708/2007/01/107.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-48CB-5 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-48CD-1
Genre: Journal Article

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 Creators:
Buican, Matthew, Author
Malyshev, Dmitry, Author
Morrison, David R., Author
Wijnholt, Martijn1, Author           
Verlinde, Herman, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 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.

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 Dates: 2007
 Publication Status: Issued
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 Identifiers: eDoc: 288727
DOI: 10.1088/1126-6708/2007/01/107
URI: http://www.iop.org/EJ/abstract/1126-6708/2007/01/107
Other: arXiv:hep-th/0610007
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Title: Journal of High Energy Physics
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Pages: - Volume / Issue: 2007 (1) Sequence Number: 107 Start / End Page: - Identifier: -