User name X. Zheng
Log entry time 11:01:42 on January18,2003
Entry number 92377
keyword=Total shower PID performanceI checked total shower PID performance using run #1406. The electrons show up as two "blobs", see the first plot.
I checked the x_fp dependence of energy deposit in preshower and shower separately. The calibration for both detectors are not very good. See plots in the second panel. (The perfect calibration should have flat distribution along x_fp).
Again, total shower calibration needs to be improved. But it is not crucial for the online analysis of current kinematics.
FIGURE 1
FIGURE 2
