2017-01 recon ver02 plans

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Checklist

  • New TOF ADC/TDC hit matching (Beni) - check monitoring results
  • FCAL
    • Add shower classifier (Matt/Sean) - maybe not at this point
    • Geometry (Sean coordinates) - DONE
    • Update calibrations - three periods: high-rate 2017, low-rate 2017, 2016
      • Gains - DONE for high-rate 2017
      • Shower energy non-linearities - DONE for high-rate 2017
      • Timing:
        • sim-recon - DONE
        • shower time walks - DONE for all 2017
        • block time offsets - DONE for all 2017
  • Update Start Counter Resolutions (Mahmoud/Sean) - DONE
  • Updates to track projection (Simon) - NOT INCLUDED
  • BCAL - charged track reconstruction issues?- Simon - ROLLED BACK TO OLD MATERIAL MAPS
  • TAGM - Updates to timing - Alex B./Sean - DONE

Plans

These improvements are expected to go into the next round of reconstructed data:

  • improved CDC dE/dx calculation
    • use of ADC amplitude instead of integral - dE/dx vs theta
    • updated truncation value
  • improved TOF calibrations
    • use of ADC amplitude instead of integral
  • new SC attenuation length corrections
  • BCAL charged track clusterizer
  • FCAL updates
    • Updated gains (fix problems with inner rings)
    • Updated timing (fix high-rate running problem)
    • Update geometry?
  • updated charged/neutral error matrices?

Outstanding questions:

  1. What is the bump in BCAL & FCAL monitoring delta T distributions at +4 ns?
    • R30590 HistMacro BCALReconstruction p1.png R30590 HistMacro FCALReconstruction p1.png
  2. What is the bump in SC monitoring delta T distributions at ~ -8 ns?
    • R30590 HistMacro SCReconstruction p2.png
  3. What is the inefficiency in the TOF matching efficiency near the beam hole due to?
    • R30590 HistMacro Matching TOF2.png
  4. What is going on with the BCAL positions measurements?