Offline Analysis Commissioning

Introduction

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

Raw Data Monitoring

• These questions are for every detector system: TAGH, TAGM, CDC, FDC, SC, TOF, BCAL, FCAL, PS (Pair Spectrometer)

Commissioning Tests

• Can we read data from tape?
• Are the detectors working?
  • 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)

Action Items

• David: Online data monitoring environment (RootSpy, hdview2, etc.)
  • David is updating RootSpy and its documentation/instructions.
  • When he's finished, he'll contact the different detector groups and remind them to write their online monitoring plugins.

• Detector groups:
  • Writing the monitoring plugins for their systems.
  • Determining which plots are the primary plots (most important for shift-takers) and which are diagnostic plots.
  • Integrating their histograms into RootSpy.

Reconstruction Quality Monitoring

Commissioning Tests

• What is the calibration quality of each system?
• 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?

Action Items

• Paul: Will integrate the monitoring_hists plugin (reconstruction) plots into RootSpy.

• Detector groups:
  • Writing the calibration scripts/programs/plugins for their systems.
  • Determining which plots are the primary plots and which are diagnostic plots.

Analysis Quality Monitoring

Commissioning Tests

• Can we see pi0 peaks
• Can we see simple final states
  • γ p → p π⁺ π^-
  • γ p → p π⁺ π^- π⁰
  • γ p → p π⁺ π^- η

Data History Monitoring

• How do the online histograms change as a function of time (e.g. hits/event vs run number)?

• Is the reconstruction working?
  • Run full reconstruction over a small % of data, view tracking/shower-reconstruction results online (hdview2, monitoring_hists plugins).