Measurement of t(t)over-cap spin correlation in p(p)over-cap collisions using the CDF II detector at the Tevatron

Abstract

The tt spin correlation at production is a fundamental prediction of QCD and a potentially incisive test of new physics coupled to top quarks. We measure the tt spin state in p collisions atat s = 1.96 TeV using 1001 candidate events in the lepton plus jets decay channel reconstructed in the CDF II detector.