BCAL reconstruction 10/19/11

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Revision as of 11:21, 19 October 2011 by Wilevine (Talk | contribs) (Created page with "==Update== * 1234 segmentation now an option in reconstruction code * New algorithm comparable to or better than KLOE algorithm in every test I tried * * Will be checked in soon...")

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Update

  • 1234 segmentation now an option in reconstruction code
  • New algorithm comparable to or better than KLOE algorithm in every test I tried
  • Will be checked in soon

Changes

  • More flexible DBCALGeometry allows 1234 summing (checked-in)
  • Change weighting when averaging quantities to form cluster
  • Improve error estimation
  • Tune parameters
  • Fix various bugs
  • Change in KLOE algorithm to min energy threshold of cluster to make the two algorithms match

Single photon event sample

45000 events, energy uniformly distributed from .05-2.05 GeV, angles from 10.8-118. Exclude all events with tracking hits, since we can't expect to reconstruct a photon in this case. All results with 1234 summing.

Efficiency

Both algorithm have ~99.5% efficiency.

Energy resolution

These plots use E_raw, not the corrected/calibrated E.

KLOE:

im

GlueX:

im

Timing resolution

Angular resolution

Number of showers reconstructed