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SSD residual

Updated on Fri, 2015-01-23 10:47. Originally created by bouchet on 2014-12-18 10:44.
900 events
/star/data03/daq/2014/166/15166010/st_physics_15166010_raw_5500061.daq (AuAu_200_production_low_2014 / physics)
BFC chain : 
DbV20141209 P2014a -PxlIT -IstIT NoSsdIt -SsdIt -SstIt btof mtd BEmcChkStat Corr4 OSpaceZ2 OGridLeak3D -hitfilt sst_daq spt
ssdMON pxlUtil pxlRaw pxlDb pxlCluster pxlHit istDb istRaw istCluster istHit -EventQA
1) default strips mapping

2) inversed strips mapping 

3) default strips mapping : sum of residuals


4) inversed strips mapping : sum of residuals





5) added : breakdown of dU and dV per wafer (default mapping)

6) added : dU, dV and charge matching per wafer (only 100 events, default mapping)

7) SIMULATION
  1. use y2014a geometry with corrected SSD ladder geometry (CVS version is misplacing ladders in r/phi)
  2. use StSsdFastSimMaker (hits smearing disable)
  3. FastSimMaker is using volume_id to find the ladder_id and wafer_id (that's why 1) was needed)
  4. use the survey geometry tables to calculate local hit position
  5. write StSsdHit and run HFTTree




8) Low luminosity data.
~10k events
/star/data03/daq/2014/163/15163042/st_physics_15163042_raw_1000001.daq



comments :
  • # of associations is much lower (for a bigger number of events processed) than a regular AuAu run
  • correlation in dU is seen but not so clear in dV --> more statistic ?







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