1) Centrality definition for Run14 AuAu 200 GeV, P16id - Xiaolong Chen
a. the fitting MC/data stops at gRefMult = 400, which is arbitrary. Need to check if the uncertainty from Glauber Model covers the bump around 450-500.
b. need to check if the uncertainty from Glauber Model covers the dip for 60-70% centrality bin after reweighting
c. it will be nice to check the results with the full statistics once they are available.

2) Jpsi in Run15 pp: how to determine the PID cuts range - Yanfang Liu
a. Using MuDst files, loop over all the primary vertices and choose the one closest to VPDvz as the selected vertex, and check if this can increase the fraction of the events within |TPC-VPD| < 5cm. Also it will be nice to check if this vertex selection increases the signal statistics.
b. Using MuDst files, use all the global tracks to reconstruct J/psi and see how much more signal can be gained.
c. Fit the sigma of dY and dZ vs pT using the function as in section 4.2 of the paper arXiv::1402.1078
d. check the like-sign distributions to see if they properly reproduce the background of unlike-sign distributions