Offline Monitoring Data Validation

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This page contains the procedure for checking if production runs are of good quality and can be used for physics analysis.

Run Periods

Procedure

For each production run, do the following:

  • Go to the | Offline Run Browser page.
  • Follow the steps outlined in the checklist below.
  • Certify that each section is okay
    • (DB + script to be developed)
  • Set run status = 1 in RCDB
    • (script provided)

Run Statuses

  • -1 - unchecked
  • 0 - rejected (not physics-quality)
  • 1 - approved
  • 2 - approved long/"mode 8" data
  • 3 - calibration / systematic studies

Checklist

Example Monitoring Spreadsheet

Reference run for 2017-01: 30780

Reference run for 2018-01: 40933/4

Reference run for 2018-08: 51388

Reference run for 2019-11: 71XXX

General Notes

  • Diamond and amorphous (AMO) runs have different beam energy spectra, which leads differences in reaction yields distributions which depend on the kinematics of the produced particles.


  • BCAL
    • Check Occupancy - Reference: [ link ]
    • Check Hit Efficiency - Reference: [ link ]
    • Check Recon. BCAL 1 - Reference: [ link ]
    • Check Recon. BCAL 2 - Reference: [ link ]
    • Check BCAL Matching - Reference: [ link ]

BCAL Reference Plots

BCAL Notes

The BCAL is used to measure the energy and time of showers. The energy is vital for the neutrals. But it’s also used for charged particles to do PID.
BCAL Matching: These plots are for charged particles that are tracked in the drift chambers and projected to the BCAL. The z position along the BCAL can be calculated using the time difference between upstream and downstream hits and compared to the extrapolated position using the drift chambers.
BCAL/Track Delta z = (z determined from time of up - down hits in BCAL) - (z determined from the extrapolation of tracks in the drift chambers) projected BCAL Hit-Z = z determined by extrapolating tracks in the drift chambers to the BCAL. The match rate is the ratio of (number of hits in the BCAL that match the extrapolation of tracks in the drift chamber) / (number of tracks in the drift chamber that point at the BCAL).

  • CDC
    • Check Occupancy - Reference: [ link ]
    • Check Time-to-distance - Reference: [ link ]
    • Check dE/dx - Reference: [ link ]
    • Check Efficiency- Reference: [ link ]

CDC Reference Plots

CDC Notes

CDC Occupancy: There should be a uniform decrease in intensity from the center of the detector outward. Random white cells scattered throughout occur when not enough data were collected, eg empty target runs, trigger tests or no beam. Several contiguous white, dark blue or bright yellow cells which don't match the neighboring cells are a problem.
Time-to-distance: 𝛿, the change in length of the LOCA caused by the straw deformation, is plotted against the measured drift time, t drift . The color scale indicates the distance of closest approach between the track and the wire, obtained from the tracking software. The red lines are contours of the time-to-distance function for constant drift distances from 1.5 mm to 8 mm, in steps of 0.5 mm. They should lie over the top of the dark blue contour lines separating the colour blocks. For the plot of residuals vs drift time, the mean should be less than 5um and the sigma should be less than 180um.
dE/dx: At 0.5GeV/c the fitted peak means should be within 1% of 2.02 and 6.34 keV/cm, and at 1.5GeV/c the peak mean should be within 1% of 2.21 keV/cm.
Efficiency: The efficiency should be 0.98 or higher at 0cm DOCA, gradually fall to 0.97 at approximately 0.5mm and then more steeply through 0.9 at approximately 0.64cm.


  • FCAL
    • Check Occupancy - Reference: [ link ]
    • Check FCAL Hits 1 - Reference: [ link ]
    • Check FCAL Hits 2 - Reference: [ link ]
    • Check FCAL Clusters 1 - Reference: [ link ]
    • Check FCAL Recon. 1 - Reference: [ link ]
    • Check FCAL Recon. 2 - Reference: [ link ]
    • Check Recon. FCAL Matching - Reference: [ link ]

FCAL Reference Plots

FCAL Notes

Is used for neutral particle detection and pion identification.


  • FDC
    • Check Package 1 Occupancy - Reference: [ link ]
    • Check Package 2 Occupancy - Reference: [ link ]
    • Check Package 3 Occupancy - Reference: [ link ]
    • Check Package 4 Occupancy - Reference: [ link ]

FDC Reference Plots

FDC Notes


  • PS
    • Check Occupancy - Reference: [ link ]
    • Check Timing Alignment - Reference: [ link ]

PS Reference Plots

PS Notes


  • SC
    • Check Occupancy - Reference: [ link ]
    • Check Recon. SC 1 - Reference: [ link ]
    • Check Recon. SC 2 - Reference: [ link ]
    • Check Recon. SC Matching - Reference: [ link ]

SC Reference Plots

SC Notes


  • TAGH
    • Check Tagger Occupancy - Reference: [ link ]
    • Check TAGH Hits 2 - Reference: [ link ]

TAGH Reference Plots

TAGH Notes


  • TAGM
    • Check Timing ADC-RF - Reference: [ link ]
    • Check Timing T-ADC - Reference: [ link ]

TAGM Reference Plots

TAGM Notes


  • TOF
    • Check Occupancy - Reference: [ link ]
    • Check TOF Matching 1 - Reference: [ link ]
    • Check TOF Matching 2 - Reference: [ link ]

TOF Reference Plots

TOF Notes


  • RF
    • Check timing offsets - Reference: [ link ]
      • Should be centered around zero

RF Reference Plots


  • Timing
    • Check Calorimeter Timing - Reference: [ link ]
    • Check Drift Chamber Timing - Reference: [ link ]
    • Check PID System Timing - Reference: [ link ]
    • Check Tagger Timing - Reference: [ link ]
    • Check Track Matched Timing - Reference: [ link ]
    • Check Tagger/RF Timing - Reference: [ link ]
    • Check Tagger/SC Timing - Reference: [ link ]

Timing Reference Plots

Timing Notes


  • Analysis
    • Tracking 1 - [ link ]
    • Tracking 3 - [ link ]
    • Check BCAL pi0 - Reference: [ link ]
    • Check BCAL/FCAL pi0 - Reference: [ link ]
    • Check p+2pi - Reference: [ link ]
    • Check p+3pi - Reference: [ link ]
    • Check p+pi0g - Reference: [ link ]

Analysis Reference Plots

Analysis Notes

The list of experts on different detector/calibration