Supersymmetric codimension-two branes in six-dimensional gauged supergravity
Abstract
We consider the six-dimensional Salam-Sezgin supergravity in the presence of codimension-2 branes. In the case that the branes carry only tension, we provide a way to supersymmetrise them by adding appropriate localised Fayet-Iliopoulos terms and localised corrections to the Chern-Simons term and modifying accordingly the fermionic supersymmetry transformations. The resulting brane action has N=1 supersymmetry (SUSY). We find the axisymmetric vacua of the system and show that one has unwarped background solutions with "football"-shaped extra dimensions which always respect N=1 SUSY for any value of the equal brane tensions, in contrast with the non-supersymmetric brane action background. Finally, we generically find multiple zero modes of the gravitino in this background and discuss how one could obtain a single chiral zero mode present in the low energy spectrum.
Keywords
Cite
@article{arxiv.0710.4319,
title = {Supersymmetric codimension-two branes in six-dimensional gauged supergravity},
author = {Hyun Min Lee and Antonios Papazoglou},
journal= {arXiv preprint arXiv:0710.4319},
year = {2009}
}
Comments
21 pages, no figures, A sign error in the gauge potential at the lower brane corrected and its consequent effect discussed