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Threshold effects in open-string theory |
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| Institution: | 1. Technion, Department of Physics, Haifa, 32000, Israel;2. Section de Mathematiques, Universite de Geneve, Geneve 4, 1211, Switzerland |
| Abstract: | We analyze the one-loop effective gauge-field action in Z2-orbifold compactifications of type-I theory. We show how, for non-abelian group factors, the threshold effects are ultraviolet finite though given entirely by a six-dimensional field theory expression. |
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