STANDARD MODEL RARE PROCESSES

AND NEW PHYSICS

Contact: Andre Schoening (H1) , Filip Zarnecki and Jolanta Sztuk-Dambietz (ZEUS)

H1 and ZEUS are combining their measurements of processes with a small cross section in the Standard Model in order to maximize the statistical precision of their observations.

Present results include:

Measurement of multi-lepton events at high transverse momentum

Observations of events with an isolated lepton and missing transverse momentum