Blowing-Up the Four-Dimensional Z_3 Orientifold

Details Blowing-Up the Four-Dimensional Z_3 Orientifold Blowing-Up the Four-Dimensional Z_3 Orientifold

1999-03-05

arxiv.org/abs/hep-th/9903051v1

JHEP 9904:020,1999

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, LateX

Scientific paper

10.1088/1126-6708/1999/04/020

We study the blowing-up of the four-dimensional Z_3 orientifold of Angelantonj, Bianchi, Pradisi, Sagnotti and Stanev (ABPSS) by giving nonzero vacuum expectation values (VEV's) to the twisted sector moduli blowing-up modes. The blowing-up procedure induces a Fayet-Iliopoulos (FI) term for the ``anomalous'' U(1), whose magnitude depends linearly on the VEV's of the blowing-up modes. To preserve the N=1 supersymmetry, non-Abelian matter fields are forced to acquire nonzero VEV's, thus breaking (some of) the non-Abelian gauge structure and decoupling some of the matter fields. We determine the form of the FI term, construct explicit examples of (non-Abelian) D and F flat directions, and determine the surviving gauge groups of the restabilized vacua. We also determine the mass spectra, for which the restabilization reduces the number of families.

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