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We present the results of searches for large extra dimensions in samples of events with large missing transverse energy E T and either a photon or a jet produced in pp̄ collisions at s=1.96TeV collected with the Collider Detector at Fermilab II. For γ+E T and jet+E T candidate samples corresponding to 2.0 and 1.1fb-1 of integrated luminosity, respectively, we observe good agreement with standard model expectations and obtain a combined lower limit on the fundamental parameter of the large extra dimensions model MD as a function of the number of extra dimensions in the model. © 2008 The American Physical Society.

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Physical Review Letters