Xi to pion ratio in PbPb collisions at 5.02 TeV for different V0M multiplicity event classes comparison with other systems. The statistical uncertainties are shown as bars, systematic in boxes and uncorrelated systematics in shaded boxes.
IMPORTANT for ALICE USERS: the plot shown here is only meant as backup material and we thus discourage to show it in the main body of the talks. We are indeed in the process of reanalysing the 2.76 TeV with the same strategy and cuts as the 5.02 TeV data and expect some difference, whose significance is yet to be established precisely. In particular, the re-analysis shows that the evolution with energy from 2.76 TeV to 5.02 TeV is less pronounced for the re-analysis. When showing these plots (in backup) the speaker should emphasise that uncertainties have to be taken seriously. In particular the increase from the published 2.76 to the preliminary 5.02 TeV in the most central collisions corresponds to 1.8sigma and thus it is not statistically significant.
LHC15o pass1