Conformal Field Theory Couplings for Intersecting D-branes on Orientifolds

Details Conformal Field Theory Couplings for Intersecting D-branes on Orientifolds Conformal Field Theory Couplings for Intersecting D-branes on Orientifolds

2003-03-10

arxiv.org/abs/hep-th/0303083v4

Phys.Rev.D68:046001,2003; Erratum-ibid.D70:029903,2004

Physics

High Energy Physics

High Energy Physics - Theory

5 figures, 29 pages, equations 3 and 77 corrected, note added

Scientific paper

10.1103/PhysRevD.68.046001

We present a conformal field theory calculation of four-point and three-point correlation functions for the bosonic twist fields arising at the intersections of D-branes wrapping (supersymmetric) homology cycles of Type II orientifold compactifications. Both the quantum contribution from local excitations at the intersections and the world-sheet disk instanton corrections are computed. As a consequence we obtain the complete expression for the Yukawa couplings of chiral fermions with the Higgs fields. The four-point correlation functions in turn lead to the determination of the four-point couplings in the effective theory, and may be of phenomenological interest.

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