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Check the results of the pi0 calibration

1. Produce dedicated PDF files:

ssh -Y plus
cd /group/calo/CalibWork/plotsCalib/
./postCalibScript.sh

(takes some time to produce all the files...)

2. Get bad cells and modify the XML file:

  • Get list of bad cells with
cd $(date +"%Y/%m/%d")
ll SecondPass/7/*/bad/
  • And with
. /group/calo/sw/scripts/setup.sh
sed -i "s/CalibrationDefault/$(date +'Calibration_%Y%m%d')/g" plotLambdaMap.cxx
root plotLambdaMap.cxx

Gray led Modify Calibration_2018XXXX.xml to remove the identified bad cells (failing fits) using the cell index
Gray led If you have any suspicion for a cell, remove it from the .xml file: No change to the HV will be applied

3. Inspect the following PDF files, by eye: Check that the fits are ok for all the cells

secondPass7.pdf
inner_secondPass.pdf 
middle_secondPass.pdf 
outer_secondPass.pdf 

Gray led Modify Calibration_2018XXXX.xml to remove the identified bad cells (failing fits) using the cell index
Gray led If you have any suspicion for a cell, remove it from the .xml file: No change to the HV will be applied

4. Modify the reference file

Warning, important To be done ONLY when you are sure that you removed all bad cells from Calibration_2018XXXX.xml Warning, important
cd /group/calo/LEDReferences/
./updateReferences.sh

This creates new reference files: referenceDownNew.root and referenceUpNew.root

the 2d histograms (ratio_led2d_h, ratio_led2d_e) should be ==1 for HCAL and identical to the lambda map from plotLambdaMap.cxx for ECAL
CHECK: You can compare these new references with previous one using the macro:
  root /group/calo/LEDReferences/ratioRef.cxx 
  • And update the reference files:
cp referenceDownNew.root referenceDown.root
cp referenceDownNew.root referenceUp.root

Warning, important These 2 files (referenceDowm.root and referenceUp.root) are used by the LED autoupdate, any modification to these file will affect the HV

5. HV modification:

Gray led The HV changes will be automatically applied at the next LED autoupdate (end of current fill)

6. Check the pi0 mass at the following fill:

sigma_pi0_lumi_time_All.eps
CHECK: Macro to plot the pi0 mass as a function of time:
  root -b -q /group/calo/CalibWork/plotsCalib/pi0VsTime_new.cxx+  
will produce useful plots like:
mean_pi0_lumi_time_All.eps

-- JeanFrancoisMarchand - 2018-05-24

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Topic revision: r5 - 2018-07-10 - JeanFrancoisMarchand
 

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