slide 2: central value is obtained from the integral of the fitted Levy function multiple by pT, statistical uncertainty is obtained by the integral of the upper 1sigma boundary of the fitted Levy function multiple by pT.
slide 3-4: central value is obtained from the mean of Levy and Power-low functions, half of their difference is assigned as a systematic uncertainty 
slide 4: the uncertainty seems to be rather large, is the x-axis error included in the fit? use Tgraph instead of histogram to redo the fit
slide 5: the yield of the models integrated in 3-6 GeV/c is scaled to data
slide 6: decompose the uncertainties into stat, syst, power vs levy, compare with Run12 

2) Upsilon vs event activity from Run11 pp500 - Leszek Kosarzewski
slide 4: Qian's results are obtained by Lezcek using the code and inputs he got from Qian. They have not been confirmed by Qian
slide 4: uncertainties are extremely small - is this really the case? difference between left and right filled circles are very large - to be understood
slide 6-7: BBC trigger efficiency correction is only applied to Run9 MB distribution. Is vertex efficiency corrected for? - to be checked
slide 10: statistical uncertainty of Y yield needs to be propagated to Y/<Y>, need to go through each systematic uncertainties. Some of them will cancel, some of them will not.

3) Centrality for Run15 pAu 200 GeV - Yanfang Liu
slide 7: one data point below curve around 30000, check why this is not removed by bad run list