Testing the Anomaly Mediation at the LHC

Understand

We consider a supersymmetric model in which gaugino masses are generated by the anomaly-mediation mechanism while scalar masses are from tree-level supergravity interaction.

• In such a model, scalar fermions as well as Higgsinos become as heavy as O(10-100TeV) and hence only the gauginos are superparticles kinematically accessible to the LHC.
• We study how and how well the properties of gauginos can be studied.
• We also discuss the strategy to test the anomaly-mediation model at the LHC.