Skip to content

A D=4 N=1 Orbifold of Type I Strings

M. Berkooz, R. G. Leigh

hep-tharXiv:hep-th/9605049

Abstract

We consider the propagation of Type I open superstrings on orbifolds with four non-compact dimensions and N=1 supersymmetry. In this paper, we concentrate on a non-trivial Z2xZ2 example. We show that consistency conditions, arising from tadpole cancellation and algebraic sources, require the existence of three sets of Dirichlet 5-branes. We discuss fully the enhancements of the spectrum when these 5-branes intersect. An amusing attribute of these models is the importance of the tree-level (in Type I language) superpotential to the consistent relationship between Higgsing and the motions of 5-branes.

Create a lesson