Searches for squarks produced via R-parity violating interactions in e~+p collisions at a center-of-mass energy of 300 GeV have been performed at HERA using the two detectors, H1 and ZEUS, and an integrated luminosity of 37 and 48 pb~(-1), respectively. Squarks produced in e~+-quark fusion could decay either to e~+-quark or via a supersymmetric gauge decay, resulting in many possible final states. The signal has been searched for in most of R-parity violating decays and gauge decays of the squarks. No evidence for squark production was found and limits were set on the R-parity violating coupling as a function of the squark mass and the SUSY parameters, extending to domains unexplored in other direct or indirect searches. For a fixed value of the coupling, HERA results are interpreted for the first time in terms of constraints on the parameters of the mSUGRA model.
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