HERA signature-based searches I: events with isolated leptons and   missing transverse momentum at HERA
  Recent results of searches for events containing isolated leptons and missing transverse momentum at HERA are presented. Searches in this final state have yielded notable excesses over Standard Model expectations in the past. Searches for isolated leptons in channels corresponding to all three generations of leptons over the full HERA running period are now available. The combined H1+ZEUS results for searches for electrons and muons are compatible with the Standard Model. 
J. Ferrando (for the ZEUS collaboration, H1 collaboration)