Difference between revisions of "Action Items"
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5. What info we need to add to the REST format (?) | 5. What info we need to add to the REST format (?) | ||
:::* Check REST files | :::* Check REST files | ||
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| + | === Luminosity ==== | ||
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| + | 1. Refine PS acceptance | ||
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=== Compton Cross Section Measurement === | === Compton Cross Section Measurement === | ||
=== Reconstruction of Primakoff events === | === Reconstruction of Primakoff events === | ||
Revision as of 14:21, 11 October 2019
Contents
[hide]Event generators (should be in the PrimEx analysis directory)
1. Signal Primakoff 2. Coherent / incoherent background 3. Hardonic background (generate MC samples of contributing decays)
4. Compton with rad corrections
- Currently have simple 'Klein Nishina' generator with 1/E energy-dependent spectrum
- Need to implement realistic shape of photon spectrum (efficiency)
5. Double Compton Generator (Pavel)
6. Need to generate MC samples according to realistic run conditions (samples for each run)
Calibration
(need to finalize calibrations before we start reprocessing PrimEx data)
1. Timing calibration for FCAL, CCAL (ST, TOF, BCAL, tagging detectors)
2. Recalibrate CCAL (non-linearity corrections) -- Drew
- Adjust tagger energy scale -- Sasha
3. FCAL calibration
- Do we use official GlueX cluster reconstruction or an Island algorithm ?
- How many calibration versions (run periods) we need ? Check with LED data (Chandra)
4. FCAL dead/suspicious channels in the CCDB (Chandra)
- exclude channels from MC and reconstruction
MC simulation (GEANT)
1. Adjust position of the CCAL according to the survey data
2. Adjust position of the FCAL according to the survey data
3. CCAL Reconstruction
- Fine tune energy resolution
- Adjust parameters of the Island algorithm (Drew)
4. Update energies of the tagger hodoscope and microscope
- wrong CCDB tables are used
5. Correct photon beam energy in both MC and reconstruction
6. Efficiency and resolution studies
- compare MC with data using some reference channels
- FCAL angular resolution
- superimpose electromagnetic background in MC
Preparation for data processing
- Skims and monitoring plots
1. Di-photon skim
2. Trees for FCAL masks (Chandra)
3. Trees for luminosity (Sasha)
4. CCAL / FCAL stability (?) (Drew, Chandra, Tim)
5. What info we need to add to the REST format (?)
- Check REST files
Luminosity =
1. Refine PS acceptance
