== Spin correlations in ttbar production == ==== 1. ==== Use MadGraph at tree level to generate 10k parton-level events for pp>tt~>bb~mu+e-vmve~, i.e., the 2->6 complete matrix element at the Tevatron and the LHC. ==== 2. ==== Study the one-particle and two-particle inclusive distributions using an event analyser (MadAnalysis or Chameleon or anything you like). ==== 3. ==== Consider the angles %$\theta_{+,-}$ defined in the lecture and plot the 2 dimensional distribution. Apply invariant mass cuts to enhance the correlations. -- Main.FabioMaltoni - 08 Dec 2008