Proposal for Detecting Top Spin Correlation Effects at the Fermilab Tevatron

Darwin Chang, Shih-Chang Lee, Alexei Soumarokov
1996 Physical Review Letters  
We propose to observe the top spin correlation effect at Tevatron through the measurement of the correlated asymmetries of the charged lepton momenta using the dilepton decay events of top and anti-top quark pairs. The possibility of reconstructing the events and observing the asymmetries at 3$\sigma$ level with projected luminosity of the Tevatron for Run II is demonstrated by simulation. The effect can provide the first direct measurement of the spin of a quark.
doi:10.1103/physrevlett.77.1218 pmid:10063021 fatcat:vjdxvlo57jcyzhvz6ahxi6nhqy