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We report the result of a search for the pair production of the lightest supersymmetric partner of the top quark (t˜1) in pp¯ collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider corresponding to an integrated luminosity of 5.4 fb−1. The scalar top quarks are assumed to decay into a b quark, a charged lepton, and a scalar neutrino (ν˜), and the search is performed in...
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