14 citations · 32 across the 4 of their papers we have counts for
12 papers · 1 filter
On Supergravity Amplitudes from Pure Spinor Strings
P. A. Grassi, L. Sommovigo
We use Pure Spinor String Theory to construct suitable building blocks to arrange the structure of supergravity amplitudes with n-points and at higher loops in a very convenient wa…
D=4, N=2 Gauged Supergravity coupled to Vector-Tensor Multiplets
Laura Andrianopoli, Riccardo D'Auria, Luca Sommovigo +1
We construct the general four-dimensional N=2 supergravity theory coupled to vector and vector-tensor multiplets only. Consistency of the construction requires the introduction of…
Theory of Superdualities and the Orthosymplectic Supergroup
Pietro Fré, Pietro Antonio Grassi, Luca Sommovigo +1
We study the dualities for sigma models with fermions and bosons. We found that the generalization of the SO(m,m) duality for D=2 sigma models and the Sp(2n) duality for D=4 sigma…
Triality Invariance in the N=2 Superstring
Leonardo Castellani, Pietro Antonio Grassi, Luca Sommovigo
We prove the discrete triality invariance of the N=2 NSR superstring moving in a D=2+2 target space. We find that triality holds also in the Siegel-Berkovits formulation of the sel…
D=4, N=2 Supergravity in the Presence of Vector-Tensor Multiplets and the Role of higher p-forms in the Framework of Free Differential Algebras
Laura Andrianopoli, Riccardo D'Auria, Luca Sommovigo
We thoroughly analyze at the bosonic level, in the framework of Free Differential Algebras (FDA), the role of 2-form potentials setting in particular evidence the precise geometric…
On the coupling of tensors to gauge fields: D=5, N=2 supergravity revisited
Laura Andrianopoli, Riccardo D'Auria, Luca Sommovigo
A general free differential algebra encoding the anti-Higgs mechanism among two-index antisymmetric tensors and gauge vectors is analyzed at the full group theoretical level. N=2 s…