Searches for R‐parity violating supersymmetry with the DØ detector at the Fermilab Tevatron pp̄‐collider are presented. In the case of non‐zero LL Ē couplings λijk ≳ 0.01, multi‐lepton final states, and for a small coupling λ122 ≪ 0.01 di‐muon final states are studied. The case of non‐zero LQD̄ coupling
leads to final states with two muons and jets.
A total integrated luminosity of 0.38 fb−1 collected between April 2002 and August 2004 is utilized. The observed numbers of events are in agreement with the Standard Model expectation, and limits on
supersymmetry are derived, extending significantly previous bounds.