Basic spectra from EHT6 trigger, CuCu 200
used ~390,000 eve of trig=endcapRamp, CuCu200, run R6041011-6041026
pedestals from R6026058
tower gains: ideal 60 GeV E_T=4096
Endcap trigger was only 10-20% dead as shown at:
http://online.star.bnl.gov/daq/export/timeline.php?run=6041013
Plots of CTB sum , energy per tower, total endcap energy per event
Estimated MIP yiled in the endcap from CTBsum: 4000/5/2/=400 mips
Estimated tower ocupancy from energy 145 GeV/0.6 GeV= 240 tower
Conclusion: the occupancy in the endcap is high, there is not many isolated MIP's
Pi0 yield from tower only algo.
Tower lost in sector 12 are due to stuck fee channels in crate 1
55K pi0 reconstructed after background subtraction, S/B=0.21, pi0 yiled 14% per triggered event. (PS)
Eta dependence of pi0 mass
Mass, resolution and yiled of pi0 vs. eta