Search For Pair Production Of Supersymmetric Top Quarks In Dilepton Events At The Tevatron
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Search for Pair Production of Supersymmetric Top Quarks in Dilepton Events at the Tevatron
Author | : William Johnson |
Publisher | : |
Total Pages | : |
Release | : 2010 |
Genre | : |
ISBN | : 9781124219684 |
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We search for pair production of the supersymmetric partner of the top quark, the stop quark, decaying to a b-quark and a chargino with a subsequent decay into a neutralino, lepton, and neutrino. Using 2.7 fb−1 of [square root]s=1.96 TeV proton on antiproton collision data collected by the CDF II experiment, we reconstruct the mass of candidate stop events and fit the observed mass spectrum to a combination of standard model processes and stop signal. No evidence of stop pair production is found, therefore we set 95% C.L. limits on the masses of the stop and the neutralino for several values of the chargino mass and the branching ratio B(X̃±/1[right arrow]X̃01l±v).
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