Dr Amanda Deisher (UCLA/ETH)
We present measurements of various differential cross sections in top pair production in proton-proton collisions at the LHC at a centre-of-mass energy of 7 TeV. We use data collected by the CMS experiment during the year 2011. Cross sections are measured differentially as a function of various variables. We also present a measurement of the charge asymmetry in top-pair production. In order to measure the charge asymmetry in charge-symmetric initial state processes, the difference of absolute pseudo rapidities of top and anti-top is used. The results are compared with various theory predictions, and discussed in the context of forward-backward asymmetry measurements at Tevatron.
Dr Manfred KRAMMER (HEPHY)