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String junctions on backgrounds with a positively charged orientifold plane

Yosuke Imamura

hep-tharXiv:hep-th/9905059

Abstract

By means of the heterotic/type IIB duality, we study properties of junctions on backgrounds with a positively charged orientifold seven-plane and D-branes, which are expected to give seven dimensional Sp(r) gauge theories. We give a modified BPS condition for the junctions and show that it reproduces the adjoint representation of the Sp(r) group.

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