Eventdisplay reconstruction and analysis pipeline for ground-based imaging atmospheric Cherenkov Telescopes

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Published October 13, 2024 | Version v491-beta.1
Software Open

Eventdisplay: an Analysis and Reconstruction Package for VERITAS

Description

Eventdisplay is a reconstruction and analysis pipeline for data of the VERITAS Imaging Atmospheric Cherenkov Telescopes (IACT).

v491-beta1 is a pre-release intended for testing. Do not use it for science analysis.

This is a major release with significant changes in the reconstruction algorithm and important bug fixes.

Improvements:

  • significant improved high-energy reconstruction by
    • allow to fill lookup tables with loss factors larger than those used in the evndisp stage.
    • allow to re-analyse events with loss factors larger than those used in the evndisp stage.
    • improved dispBDT reconstruction with much better hyper parameter (derived from optimization on CTAO simulations)
    • added dispBDT energy reconstruction to allow to reconstruct events with large loss factors
    • improved BDT gamma/hadron separation; addition of DispAbsSumWeigth variable for gamma/hadron separation

Bug fixes:

  • replaced 'closes-bin' algorithm for BDT gamma/hadron tree selection by interpolation in zenith. This fixes the issue reported in ELOG 2597, with clearly visible effects from the binning of the BDTs in zenith angle.

What's Changed

  • v490.9 dev1 - improve selection of images on mscw stage; bug fix in event selection for dispAnalyzer by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/254
  • v490.9-dev2 - removal of size2 by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/265
  • fix reading of size by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/266
  • v490.9-dev4 - minor fixes by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/267
  • Bump docker/build-push-action from 5 to 6 by @dependabot in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/268
  • increase precision of MJD printout to be useful. by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/269
  • improved help for logFile tool by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/270
  • BDT disp training for different loss cuts by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/271
  • Update to astyle 3.6 by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/273
  • v491 dev1 - plotting tool for mscw variables. by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/272
  • v491 dev2 - Adding BDTdispEnergy by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/274
  • v491-dev 3: MVA interpolation fix by @GernotMaier in https://github.com/VERITAS-Observatory/EventDisplay_v4/pull/275

Full Changelog: https://github.com/VERITAS-Observatory/EventDisplay_v4/compare/v490.8...v491-beta.1

Notes

If you use this software, please cite it using these metadata.

Files

VERITAS-Observatory/EventDisplay_v4-v491-beta.1.zip

Files (1.4 MB)

Additional details

Related works

Is supplement to
Software: https://github.com/VERITAS-Observatory/EventDisplay_v4/tree/v491-beta.1 (URL)