Searches for Long-Lived Particles at LHCb

This poster presents three of the latest results on long-lived particles (LLP) searches at LHCb. A search for a LLP decaying to a muon and two jets using 3 fb-1 of pp collision data collected in Run 1, a search for LLP produced in pairs from a standard Higgs boson and decaying to a jet pairs using 2 fb-1 of pp collision data collected in Run 1, and a search for a Drell-Yan dark photon decaying to two muons using 1.6 fb-1 of pp collision data collected in Run 2. No signal was found in each case and upper limits, on the number of expected signal events for the dark photon and the production cross-section for the others, were computed in function of the mass and lifetime of the LLP.