On the global symmetries of 6D superconformal field theories
Abstract
We study global symmetry groups of sixdimensional superconformal field theories (SCFTs). In the Coulomb branch we use field theoretical arguments to predict an upper bound for the global symmetry of the SCFT. We then analyze global symmetry groups of Ftheory constructions of SCFTs with a onedimensional Coulomb branch. While in the vast majority of cases, all of the global symmetries allowed by our Coulomb branch analysis can be realized in Ftheory, in a handful of cases we find that Ftheory models fail to realize the full symmetry of the theory on the Coulomb branch. In one particularly mysterious case, Ftheory models realize several distinct maximal subgroups of the predicted group, but not the predicted group itself.
 Publication:

Journal of High Energy Physics
 Pub Date:
 July 2016
 DOI:
 10.1007/JHEP07(2016)005
 arXiv:
 arXiv:1510.08056
 Bibcode:
 2016JHEP...07..005B
 Keywords:

 Differential and Algebraic Geometry;
 FTheory;
 Global Symmetries;
 Superstring Vacua;
 High Energy Physics  Theory
 EPrint:
 47 pages