Non-perturbative Enhanced Gauge Symmetries in the Gimon-Polchinski Orientifold

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We study the enhanced gauge symmetries at constant couplings in the moduli space of the Gimon-Polchinski Orientifold. We show that whenever there is a singularity of E_6, E_7 and E_8 type we get enhanced gauge symmetry U(5), U(6) and U(8) respectively. This is due to the additional twisting involved in the definition of the Gimon-Polchiniski orientifold.
14 pages, harvmac

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/54887

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/9702031
 http://arxiv.org/abs/hep-th/9702031

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arXiv