Gravitino production at colliders

We perform phenomenological studies for a supersymmetric (SUSY) theory in which the gravitino is the lightest SUSY particle. We investigate different production mechanisms for gravitinos at the Large Hadron collider (LHC) and a future linear electron-positron collider, and study the resulting signatures. The cross sections and distributions of gravitino production are sensitive to the gravitino mass and the masses of the other SUSY particles involved. We show how to extract information about the parameters of our theory if an excess over the SM expectations is observed in future experimental data. Further on, from the non-observation of a beyond SM signal in existing LHC data, we set a lower bound on the gravitino mass.