New couplings of six-dimensional supergravity Original Research Article

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