2007/10/31 by Hyun Min Lee, Antonios Papazoglou
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Brane cosmology #Codimension #Cosmology and Gravitation Theories #Gauged supergravity #Mathematics #Noncommutative and Quantum Gravity Theories #Particle physics #Physics #Pure mathematics #Supergravity #Supersymmetry #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2008/01/008
published as JHEP 0801:008,2008 · 21 pages, no figures, A sign error in the gauge potential at the lower brane corrected and its consequent effect discussed
openalex publication_date 2008/01/04 · arxiv created 2008/03/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.