2010/11/30 by Vijay Kumar, Daniel S. Park, Washington Taylor
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-th
paper · pdf · doi:10.1007/jhep04(2011)080
published as JHEP 1104:080,2011 · 31 pages, latex; v2, v3: minor corrections, references added
arxiv created 2011/03/13 · openalex publication_date 2011/04/01 · arxiv updated 2011/04/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We systematically investigate the finite set of possible gauge groups and matter content for N = 1 supergravity theories in six dimensions with no tensor multiplets, focusing on nonabelian gauge groups which are a product of SU(N) factors. We identify a number of models which obey all known low-energy consistency conditions, but which have no known string theory realization. Many of these models contain novel matter representations, suggesting possible new string theory constructions. Many of the most exotic matter structures arise in models which precisely saturate the gravitational anomaly bound on the number of hypermultiplets. Such models have a rigid symmetry structure, in the sense that there are no moduli which leave the full gauge group unbroken.