STAR Offline QA Shift Histogram Description - Run 9

Note:  Not all reference plots may be ideal, be sure to carefully read the descriptions.

This page contains the reference histograms and descriptions for the Offline QA system for Run 9.  These pages should correspond exactly to the jobs viewed in the Offline QA Browser.  However, STAR is a dynamic experiment and the plots generated for QA will change several times throughout the run.  If this reference page seems out-of-date, or if you find a job that would make a better reference, please email the QA hypernews list here.

Other links:

• STAR QA Documentation

• Offline QA

• QA Shift Report Forms

Elizabeth Wingfield for the QA Team.
April 2, 2009.

Page Index for QA Shift Plots

• Page 1
• Page 2

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• Page 1

  
  1. StE trigger word: Distribution of trigger word groups: 1 = minimum bias, 2 = central, 3 = high pt, 4 = Jet patch, 5 = high BEMC tower, 6 = other.
  
  2. StE trigger bits: Frequency of usages of 32 trigger bits.
  
  3. StE softmon: all charge east/west,tpc: Ratio of total charge in all reconstructed clusters in TPC east to west halves. Should be peaked at ~1 with FWHM ~ 0.5, but is not being filled in this run.
  
  4. StE softmon: all charge east/west,ftpc: Ratio of total charge in all reconstructed clusters in FTPC East to West. Not filled in this run.
  
  5. FTPC West chargestep: The real chargestep corresponds to the maximum drift time in FTPC West (clusters from inner radius electrode) and is located near 170 timebins. This position will change slightly with atmospheric pressure. The hits beyond the step at timebin 170 are due to electronic noise and pileup. This step should always be visible even if it is only a "blip". Not filled in this run.
  
  6. FTPC East chargestep: The real chargestep corresponds to the maximum drift time in FTPC East (clusters from inner radius electrode) and is located near 170 timebins. This position will change slightly with atmospheric pressure. The hits beyond the step at timebin 170 are due to electronic noise and pileup. This step should always be visible even if it is only a "blip". Not filled in this run.
  
  

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• Page 2

  
  1. FTPCW cluster radial position: Radial positions of clusters. Not filled in this run.
  
  2. FTPCE cluster radial position: Radial positions of clusters. Not filled in this run.