English

Scattering of twist fields from D-branes and orientifolds

High Energy Physics - Theory 2008-11-26 v2

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.

Keywords

Cite

@article{arxiv.0706.3199,
  title  = {Scattering of twist fields from D-branes and orientifolds},
  author = {Albion Lawrence and Amit Sever},
  journal= {arXiv preprint arXiv:0706.3199},
  year   = {2008}
}

Comments

34 pages, 8 figures. v2 -- references added