Calibrations

 This will be a page that aggregates information for calibrating the EPD.

Welcome to the EPD calibration page. From here, you can:

  • Find a calibration status for any year and run
  • Learn how to calibrate the EPD
  • Get current software to calibrate the EPD and display EPD issues

Sections generally provide links to more detailed information.



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Calibration Status

Done:

production_3p85GeV_fixedTarget_2019 3 2019 FXT 5  https://drupal.star.bnl.gov/STAR/blog/eloyd/EPD-Calibration-Run-19-385GeV-FXT-dataset
1. Generate picos
  
production_4p59GeV_fixedTarget_2019 3.2 2019 FXT 5   2. Fit all days  
production_7.3GeV_fixedTarget_2019 3.9 2019 FXT 5 https://drupal.star.bnl.gov/STAR/blog/cracz/run-19-epd-calibrations-73-gev-fxt
3. Troubleshoot problem tiles
  
production_31GeV_fixedTarget_2019 7.7 2019 FXT 5  https://drupal.star.bnl.gov/STAR/blog/eloyd/EPD-Calibration-Run-19-31GeV-FXT-dataset
4. Enter values into database
  
production_7p7GeV_2019 7.7 2019 COL 5      
production_14p5GeV_2019 14.5 2019 COL 5      
production_19GeV_2019 19 2019 COL 5      
production_AuAu200_2019 200 2019 COL 1      
production_5p75GeV_fixedTarget_2020 3.5 2020 FXT 5    
production_7p3GeV_fixedTarget_2020 3.9 2020 FXT 5    
production_9p8GeV_fixedTarget_2020 4.5 2020 FXT 5    
production_13p5GeV_fixedTarget_2020 5.2 2020 FXT 5  https://drupal.star.bnl.gov/STAR/blog/eloyd/EPD-Calibration-Run-20-13p5GeV-FXT-dataset    
production_19p5GeV_fixedTarget_2020 6.2 2020 FXT 5  https://drupal.star.bnl.gov/STAR/blog/eloyd/EPD-Calibration-Run-20-19p5GeV-FXT-dataset    
production_26p5GeV_fixedTarget_2020 7.2 2020 FXT 5 https://drupal.star.bnl.gov/STAR/blog/eloyd/EPD-Calibration-Run-20-26p5GeV-FXT-dataset    
production_31p2GeV_fixedTarget_2020 7.7 2020 FXT 5      
production_11p5GeV_2020 11.5 2020 COL 5 https://drupal.star.bnl.gov/STAR/blog/dchen/EPD-Calibration-Run20-11p5-GeV-AuAu    
2021 "live calibration"   2021   4      
2022 "calibration"   2022   2      
production_26p5GeV_fixedTarget_2020 7.2 2020   1    


This is the current and past calibration status for the various runs in STAR. All runs will also show whether they are complete, in progress, or not yet started.

Run 22 Calibration Status

Run 21 Calibration Status

  • Status: Done ("Live Calibration")

Run 20 calibrations:

  • Status: in progress
  • 7.7 GeV FXT and 9.2 GeV COL complete
  • 3.5 (5.75) GeV FXT, 3.9 (7.3) GeV FXT, 4.5 (9.8) GeV FXT, 11.5 GeV COL calibration complete.

Run 19 calibrations:

Run 18 calibrations:

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Calibration Process

The basics of calibration can be found here:
https://drupal.star.bnl.gov/STAR/blog/skk317/epd-calibration-isobar-final

Erik's slides on the process of calibration:
https://drupal.star.bnl.gov/STAR/blog/eloyd/EPD-Calibration-Procedure
There will be some updates to this based on more recent code, but this will get you started. Up to date code can be found here:
https://github.com/cdxing/EpdCalibration
https://colab.research.google.com/drive/1a_GEeXxQRDjgFs1E1CUSNY-vjRJYTAKM?usp=sharing