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User name Kai
Log entry time 03:43:56 on November25,2009
Entry number 302412
keyword=It is because yesterday we are running in low rate e+ mode, and the GC spectrum itself looks like that of pion
We didn't see this problem yesterday. Becuase the spectrum of GC in e+ run itself without any cut is pion like due to the low rate of e+. The figure below is one from yesterday e+ run with run number 25728.