Scattering of twist fields from D-branes and orientifolds

Abstract

We compute the two-point function for Z_N orbifold twist fields on the disk and RP2. We apply this to a computation of the O(g_s) correction to the Kahler potential for (the symmetric combination of) blow-up modes in type I string theory on T^6/Z_3. This is related by supersymmetry to the one-loop field dependent correction to the Fayet-Iliopoulos D-term for the anomalous U(1) factor. We find this correction to be non-vanishing away from the orbifold point.

34 pages, 8 figures. v2 -- references added

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• Chiral Asymmetry in Four-Dimensional Open-String Vacua
• Fayet-Iliopoulos Terms in Supergravity and Cosmology
• Gauge couplings in four-dimensional Type I string orbifolds
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• Brane world effective actions for D-branes with fluxes
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Cited by in corpus (5)

• Scattering and Sequestering of Blow-Up Moduli in Local String Models
• Correlators of arbitrary untwisted operators and excited twist operators for N branes at angles
• Canonical quantization of a string describing $N$ branes at angles
• Towards a fully stringy computation of Yukawa couplings on non factorized tori and non abelian twist correlators (I): the classical solution and action
• DLCQ Strings, Twist Fields and One-Loop Correlators on a Permutation Orbifold