| Summary: | We present a search for the pair production of scalar top quarks, over(t, ̃), using 995 pb-1 of data collected in p over(p, ̄) collisions with the DØ detector at the Fermilab Tevatron Collider at sqrt(s) = 1.96 TeV. Both scalar top quarks are assumed to decay into a charm quark and a neutralino (over(χ, ̃)10), where over(χ, ̃)10 is the lightest supersymmetric particle. This leads to a final state with two acoplanar charm jets and missing transverse energy. We find the yield of such events to be consistent with the standard model expectation, and exclude sets of over(t, ̃) and over(χ, ̃)10 masses at the 95% C.L. that substantially extend the domain excluded by previous searches.
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