IIA string instanton corrections to the four-fermion correlator in the intersection of Del Pezzo surfaces

Details IIA string instanton corrections to the four-fermion correlator in the intersection of Del Pezzo surfaces IIA string instanton corrections to the four-fermion correlator in the intersection of Del Pezzo surfaces

2002-09-07

arxiv.org/abs/hep-th/0209063v1

Phys.Rev. D67 (2003) 026007

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, LaTeX, 2 Tables, 1 diagram

Scientific paper

10.1103/PhysRevD.67.026007

The Becker-Becker-Strominger formula, describing the string world-sheet instanton corrections to the four-fermion correlator in the Calabi-Yau compactified type-IIA superstrings, is calculated in the special case of the Calabi-Yau threefold realized in the intersection of two Del Pezzo surfaces. We also derive the selection rules in the supersymmetric GUT of the Pati-Salam type associated with our construction.

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