Scattering of twist fields from D-branes and orientifolds

Details Scattering of twist fields from D-branes and orientifolds Scattering of twist fields from D-branes and orientifolds

2007-06-21

arxiv.org/abs/0706.3199v2

JHEP0709:094,2007

Physics

High Energy Physics

High Energy Physics - Theory

34 pages, 8 figures. v2 -- references added

Scientific paper

10.1088/1126-6708/2007/09/094

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.

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