New couplings of six-dimensional supergravity

Abstract

We describe the couplings of six-dimensional supergravity, which contain a self-dual tensor multiplet, to n T anti-self-dual tensor matter multiplets, nv vector multiplets and n H hypermultiplets. The scalar fields of the tensor multiplets form a coset SO( n T, 1)/ SO( n T), while the scalars in the hypermultiplets form quarernionic Kähler-symmetric spaces, the generic example being Sp( n H, 1)/ Sp( n H) ⊗ Sp (1). The gauging of the compact subgroup Sp( n H) ⊗ Sp(1) is also described. These results generalize previous ones in the literature on matter couplings of N = 1 supergravity in six dimensions.