Search for Isolated Leptons with Missing pt and Multi-leptons at HERA
  A search for events with one or more isolated leptons in the final state is performed on a data sample collected in e+-p collisions with the H1 and ZEUS detectors at the HERA collider. The data sample corresponds to an integrated luminosity of ~1 fb-1, representing the full HERA high-energy data set. The yields of single, di- and tri-lepton events are measured and compared to the Standard Model predictions, looking for possible deviations. No significant discrepancy with respect to the Standard Model expectations is observed. 
M. Turcato (Hamburg University) (for the H1 Collaboration and ZEUS   Collaboration)