Pinned Branes and New Non Lorentz Invariant Theories

Details Pinned Branes and New Non Lorentz Invariant Theories Pinned Branes and New Non Lorentz Invariant Theories

2000-02-21

arxiv.org/abs/hep-th/0002175v2

Nucl.Phys. B587 (2000) 228-248

Physics

High Energy Physics

High Energy Physics - Theory

29pp LaTeX, formulas in section 7 corrected, ref added, final version to appear in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(00)00354-0

We describe a mechanism for localising branes in ambient space. When a 3-form flux is turned on in a Taub-NUT space, an M5-brane gets an effective potential that pins it to the center of the space. A similar effect occurs for M2-branes and D-branes with appropriate fluxes. In carefully chosen limits of the external parameters, this leads to new theories that are decoupled from gravity and appear to break Lorentz invariance. For example, we predict the existence of a new 5+1D theory that breaks Lorentz invariance at high-energy and has a low-energy description of N tensor multiplets with (1,0) supersymmetry. We also predict a new type of theory that, similarly to the little-string theory decouples from gravity by a dynamical (rather than kinematical) argument.

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