New class of N=1 no-scale supergravity models.
We introduce a new N=1 no-scale supergravity model with F- and D-term breaking. It contains a single chiral supermultiplet T and a single U(1) vector multiplet U, gauging a nonanomalous axionic shift symmetry. Both supersymmetry and the gauge symmetry are spontaneously broken, with the spin-3/2, spin-1, and spin-1/2 masses sliding along a classical flat direction, with a single real massless scalar in the spectrum. The other degrees of freedom are absorbed by the massive gravitino and vector. We extend our model, under very mild conditions, to general gauge groups and matter content.
Dipartimento di Fisica ed Astronomia "G. Galilei", Università di Padova and INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Italy.
Gianguido
G
Dall'Agata
Dipartimento di Fisica ed Astronomia "G. Galilei", Università di Padova and INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Italy.
Fabio
F
Zwirner