Difference between revisions of "XGT1 2018 analysis"

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(Created page with "==X>1 Current Tasks== ==Monte-Carlo Work== ===Optics and Acceptance=== ===Check Miss-pointing=== ==XEM model / Externals== ===Improve geometry of cryo cells=== ===Iterate mo...")
 
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==X>1 Current Tasks==
+
=X>1 Current Tasks=
 +
 
 +
==Data Calibrations Checks==
 +
===Pass-4 write-up and overview of changes===
 +
* Pass-4 implements default pedestals, which recover a significant number of X>1 events.  This was straight forward, so everything should be set up correctly
 +
** PS was high.
 +
** Data rate was quite high.
 +
** New ADC-TDC offset sent to each detector, (starttime-pulsetime-offset) -> New timing windows (Done)
 +
* Pass-4 reduce tof_tolerance value from 100 to 5 (ns)
 +
** This was a significant problem with F2 data analysis.  We need to look at the new hodo starttime histograms and see if there are any patterns / trends / differences.  I haven't looked at them yet.
 +
[[//https://hallcweb.jlab.org/DocDB/0010/001055/001/HCANA_Hodo_changes_april2020.pdf New Hodo Histo Diagnostics]]
 +
[[//https://hallcweb.jlab.org/DocDB/0010/001056/001/April%202020%20HCANA%20changes%20for%20other%20detectors.pdf Changes other Detectors]]
 +
===Beam in hcana===
 +
* Pointing Surveys use inconsistent language
 +
** I just don't have a good imagination for the coordinates yet (2 years later..)
 +
*** Go sit under the pivot with a piece of paper and pencil
 +
*HARP scan fits are not those reported -> Fits used with no documentation / fit pannel
 +
** I am always confused by the change of coordinates between different systems. 
 +
** Leads to some differences in gbeam.param values
 +
===Review hallc_replay_XEM===
 +
* In progress (check_master branch).
 +
** Get up and running with the XEM replay.  Some small difference in directory structures compared to f2xem and hallc_replay_f2xem (yes, two others!)
 +
** Added updated hallc_replay calibration scripts.
 +
===Calorimeter still makes no sense for X>1===
 +
 
 +
===Excess events in cryo targs (X>1, X>2)===
 +
===Check electronic livetime model===
  
 
==Monte-Carlo Work==
 
==Monte-Carlo Work==
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===Iterate model parameters===
 
===Iterate model parameters===
  
==Data Calibrations==
 
===Review hallc_replay_XEM===
 
===Excess events in cryo targs (X>1, X>2)===
 
===Check electronic livetime model===
 
  
 
==Data to MC Ratios / Cross-sections==
 
==Data to MC Ratios / Cross-sections==

Revision as of 10:33, 3 September 2021

X>1 Current Tasks

Data Calibrations Checks

Pass-4 write-up and overview of changes

  • Pass-4 implements default pedestals, which recover a significant number of X>1 events. This was straight forward, so everything should be set up correctly
    • PS was high.
    • Data rate was quite high.
    • New ADC-TDC offset sent to each detector, (starttime-pulsetime-offset) -> New timing windows (Done)
  • Pass-4 reduce tof_tolerance value from 100 to 5 (ns)
    • This was a significant problem with F2 data analysis. We need to look at the new hodo starttime histograms and see if there are any patterns / trends / differences. I haven't looked at them yet.

[New Hodo Histo Diagnostics] [Changes other Detectors]

Beam in hcana

  • Pointing Surveys use inconsistent language
    • I just don't have a good imagination for the coordinates yet (2 years later..)
      • Go sit under the pivot with a piece of paper and pencil
  • HARP scan fits are not those reported -> Fits used with no documentation / fit pannel
    • I am always confused by the change of coordinates between different systems.
    • Leads to some differences in gbeam.param values

Review hallc_replay_XEM

  • In progress (check_master branch).
    • Get up and running with the XEM replay. Some small difference in directory structures compared to f2xem and hallc_replay_f2xem (yes, two others!)
    • Added updated hallc_replay calibration scripts.

Calorimeter still makes no sense for X>1

Excess events in cryo targs (X>1, X>2)

Check electronic livetime model

Monte-Carlo Work

Optics and Acceptance

Check Miss-pointing

XEM model / Externals

Improve geometry of cryo cells

Iterate model parameters

Data to MC Ratios / Cross-sections

Binning cross-section in X

Statistical Error propagation

Systematic Errors