## Extended Tree-Level Gauge Mediation

Preprint number: CP3-Origins-2011-26 and DIAS-2011-13
Authors: Maurizio Monaco (SISSA and INFN), Marco Nardecchia (CP3-Origins), Andrea Romanino (SISSA and INFN), and Robert Ziegler (Technical University of Munich)
Tree-level gauge mediation (TGM) is a scenario of SUSY breaking in which the tree-level exchange of heavy (possibly GUT) vector fields generates flavor-universal sfermion masses. In this work we extend this framework to the case of $E_6$ that is the natural extension of the minimal case studied so far. Despite the number of possible $E_6$ subgroups containing $GSM$ is large (we list all rank 6 subgroups), there are only three different cases corresponding to the number of vector messengers.