Twisting E8 Five-Branes

Details Twisting E8 Five-Branes Twisting E8 Five-Branes

2002-05-16

arxiv.org/abs/hep-th/0205162v2

Phys.Rev. D66 (2002) 046001

Physics

High Energy Physics

High Energy Physics - Theory

40 pages, LaTeX; references added

Scientific paper

10.1103/PhysRevD.66.046001

We consider the tensor theory on coincident E8 5-branes compactified on a three torus. Using string theory, we predict that there must be distinct components in the moduli space of this theory.We argue that new superconformal field theories are to be found in these sectors with, for example, global G2 and F4 symmetries. In some cases, twisted E8 5-branes can be identified with small instantons in non-simply-laced gauge groups. This allows us to determine the Higgs branch for the fixed point theory. We determine the Coulomb branch by using an M theory dual description involving partially frozen singularities. Along the way, we show that a D0-brane binds to two D4-branes, but not to an Sp-type O4-plane (despite the existence of a Higgs branch). These results are used to check various string/string dualities for which, in one case (quadruple versus NVS), we present a new argument. Finally, we describe the construction of new non-BPS branes as domain walls in various heterotic/type I string theories.

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