Comparation between FMS triggered old simulation and latest simulation in p+p

(1) FMS Selections

   In simulation, applying FMS acceptance cuts for pi0 decayed photons, and requiring the pi0 with pt > 2.0GeV/c.

(2) BBC requirement

   East BBC charge sum non-zero and west BBC charge sum non-zero.

(3) Results

   The red distributions stand for old simualtion and the blue distributions stand for latest simulation.

   1, BEMC

                   Figure1, BEMC cluster pair invariant masses (left) and invariant masses between [0.05GeV/c^{2}, 0.2GeV/c^{2}] are fit with Gaussian are shown in the right plot.

                  Figure2, BEMC jet-like cluster invariant masses wih mean of the invariant masses shown in the plot.

    2, EEMC

                           Figure3, EEMC cluster pair invariant masses wih mean of the invariant masses shown in the plot.

                     Figure4, EEMC jet-like cluster invariant masses wih mean of the invariant masses shown in the plot.

(4) Conclusions

      The masses in old simulation for cluster pairs or jet-like clusters are in consistent with that in the latest simulation.