Difference between revisions of "Action Items"
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=== Event generators (should be in the PrimEx analysis directory) === | === Event generators (should be in the PrimEx analysis directory) === | ||
| − | 1. Signal Primakoff | + | 1. Signal Primakoff (Iliya) |
| − | 2. Coherent / incoherent background | + | |
| − | 3. | + | 2. Coherent / incoherent background (Iliya) |
| + | |||
| + | 3. Hadronic background (generate MC samples of contributing decays) (Tim) | ||
| Line 9: | Line 11: | ||
::* Currently have simple 'Klein Nishina' generator with 1/E energy-dependent spectrum | ::* Currently have simple 'Klein Nishina' generator with 1/E energy-dependent spectrum | ||
::* Need to implement realistic shape of photon spectrum (efficiency) | ::* Need to implement realistic shape of photon spectrum (efficiency) | ||
| − | 5. Double Compton Generator (Pavel) | + | 5. Double Compton Generator (Pavel/Igal) |
6. Need to generate MC samples according to realistic run conditions (samples for each run) | 6. Need to generate MC samples according to realistic run conditions (samples for each run) | ||
| − | |||
=== Calibration === | === Calibration === | ||
| Line 59: | Line 60: | ||
1. Di-photon skim | 1. Di-photon skim | ||
| − | 2. Trees for FCAL masks (Chandra) | + | 2. Single cluster/hit skim (Igal) |
| + | |||
| + | 3. Trees for FCAL masks (Chandra) | ||
| − | + | 4. Trees for luminosity (Sasha) | |
| − | + | 5. CCAL / FCAL stability (?) (Drew, Chandra, Tim) | |
| − | + | 6. What info we need to add to the REST format (?) | |
:::* Check REST files | :::* Check REST files | ||
Latest revision as of 13:27, 4 September 2020
Contents
[hide]Event generators (should be in the PrimEx analysis directory)
1. Signal Primakoff (Iliya)
2. Coherent / incoherent background (Iliya)
3. Hadronic background (generate MC samples of contributing decays) (Tim)
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/Igal)
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. Single cluster/hit skim (Igal)
3. Trees for FCAL masks (Chandra)
4. Trees for luminosity (Sasha)
5. CCAL / FCAL stability (?) (Drew, Chandra, Tim)
6. What info we need to add to the REST format (?)
- Check REST files
Luminosity
1. Refine PS acceptance
2. Interface with the CCDB to retrieve lumi numbers for specific energy range (bin) (Sasha)
3. Apply corrections to lumi, account for non-uniformity of bunches
