Offline Analysis Commissioning

Introduction

• This document describes the goals & plans for the data monitoring that will be carried out during the fall 2014 commissioning run of Hall D.

Commissioning Tests

Raw Data

• Are the detectors working?
  • TAGH, TAGM, CDC, FDC, SC, TOF, BCAL, FCAL, PS (Pair Spectrometer)
  • Do all of the channels have hits?
  • What are the hit counts/rates per channel?
  • Are the energies & times OK, garbage, or out of range? (by channel)
• Can we read data from tape?
• Can we reproduce the online histograms with offline data?

Reconstruction Quality Monitoring

• What is the calibration quality of each system?
  • TAGH, TAGM, CDC, FDC, SC, TOF, BCAL, FCAL, PS
• Can we perform reconstruction for each system? (Tracks, showers, etc.)
• Are there any regions of the detector where reconstruction is inefficient?
• Are tracks being properly matched to hits in the other detectors?
• What is the quality of the particle ID?

Analysis Quality Monitoring

• Can we see π⁰ peaks
• Can we see simple final states
  • γ p → p π⁺ π^-
  • γ p → p π⁺ π^- π⁰
  • γ p → p π⁺ π^- η

Offline Data Monitoring Plans

Raw Data

• Pull key data/histograms from online histograms, put data in database, make history & plots viewable on webpage
• Periodically test that we can reproduce online histograms using on-tape EVIO data.

Calibration/Reconstruction Quality

• Periodically submit jobs to monitor calibration & reconstruction quality of data on tape.
  • Just a file or two from each run.
  • Submit either at some fixed-time interval (every 2 weeks?) or perhaps after big changes.
  • Save key data in database, make history & key plots viewable on webpage
• When ready to do full reconstruction, run calibration & reconstruction quality plugins on all files, save key data to database & make viewable on webpage.

Analysis Quality

• Periodically submit analysis jobs to study π⁰'s and simple final states, show results at meetings.

Action Items

David/Sergey/Online

• David and the online group will manage the online monitoring environment (RootSpy, hdview2, etc.)
• Make sure online monitoring histograms are stored on the ifarm work disk somewhere for quick offline access, and archived to tape.
• Make sure that the run conditions information stored in the online database are query-able.

Detector groups

• Writing the raw data monitoring plugins for their systems.
  • SVN Plugins
  • Instructions/Documentation
• Determining which raw data plots are the primary plots (most important for shift-takers) and which are diagnostic plots.
• Integrating their raw data histograms into RootSpy.
• Writing the calibration scripts/programs/plugins for their systems, and updating the reconstruction software as needed.

Paul

• Will setup and maintain the offline reconstruction software build for monitoring (help/direction from Simon/Mark?)
• Will integrate the monitoring_hists plugin (reconstruction) plots into RootSpy.

Kei

• Will write and (periodically) submit jobs to the farm to:
  • Test the raw data to see whether we can reproduce the online hisotgrams offline
  • Produce updated calibration & reconstruction quality histograms (a few files per run)
  • Study π⁰ reconstruction and simple final states, and will show results at meetings.
• Will maintain/organize the histogram files on the GlueX work disk.

Sean

• Will build (sqlite) database for storing key data monitoring information (run meta info, and entries for each EVIO file).
• Will write and launch scripts that pull key data from the online monitoring histograms (after each run ends) and stores them in the database.
• Will write and launch scripts that pull key data from the calibration/reconstruction quality histograms (that Kei makes) and stores them in the database.
  • All of these scripts should also grab key plots for the webpage and save the png(s) to disk.

Justin

• Will build webpage(s) for viewing primary plots of:
  • Raw data for: All runs, past run history (trends of key data from database)
  • Reconstruction & calibration quality for: Each run, & trends of key data for all runs.
• Will work with Sean to write scripts to ping database for data and grab histogram png(s) to update the webpages.