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Gauge thresholds in the presence of oblique magnetic fluxes | | Massimo Bianchi
; Elisa Trevigne
; | | Date: |
11 Jun 2005 | | Subject: | hep-th | | Affiliation: | Dipartimento di Fisica and Sezione I.N.F.N. - Universita` di Roma ``Tor Vergata’’ | | Abstract: | We compute the one-loop partition function and analyze the conditions for tadpole cancellation in type I theories compactified on tori in the presence of internal oblique magnetic fields. We check open - closed string channel duality and discuss the effect of T-duality. As an application we derive the spectrum of the model recently proposed by Antoniadis and Maillard (AM), where all closed string moduli except the dilaton-axion are stabilized in a supersymmetric fashion, and verify its quantum consistency. We then pass to describe the computation of one-loop threshold corrections to the gauge couplings in models of this kind and once again specialize our formulae to the case of the AM model for illustration. Finally we briefly comment on coupling unification and dilaton stabilization in phenomenologically more viable models. | | Source: | arXiv, hep-th/0506080 | | Services: | Forum | Review | PDF | Favorites | |
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