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arXiv · 1211.1097

Global Gluing and G-flux

Joseph Marsano·Natalia Saulina·Sakura Schafer-Nameki
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Abstract

Local models that capture the 7-brane physics of F-theory compactifications for supersymmetric GUTs are conveniently described in terms of an E_8 gauge theory in the presence of a Higgs bundle. Though the Higgs bundle data is usually determined by the local geometry and G-flux, additional gluing data must be specified whenever the Higgs bundle spectral cover is not smooth. In this paper, we argue that this additional information is determined by data of the M-theory 3-form that is not necessarily captured by the cohomology class of the G-flux. More specifically, we show that when the 3-form is specified in terms of a line bundle on a spectral divisor, which is a global extension of the Higgs bundle spectral cover, the gluing data of the local model is uniquely determined in a way that ensures agreement with Heterotic results whenever a Heterotic dual exists.

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Joseph Marsano, Natalia Saulina, Sakura Schafer-Nameki. 2012-11-06. Global Gluing and G-flux. https://doi.org/10.1007/jhep08(2013)001

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