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Review of WG Activities and Future Plans

ePIC Software & Computing News, March 20, 2024.

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Reconstruction WG

Conveners:

Derek Anderson (dmawxc@iastate.edu)

Shujie Li (ShujieLi@lbl.gov)

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WG Charge and Priorities

Priorities for FY23-24 :

  • Enforcing modularity for clear separation between the development of reconstruction algorithms and the development of the framework and its services
  • Embrace algorithmic development that utilizes the holistic information from detector components or the entire detector
  • Integrate far-forward and far-backward detectors in reconstruction
  • Implement a web-based event display.

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ePIC Software & Computing News, April 22, 2024.

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Charge:

Development of a holistic and modular reconstruction for the integrated ePIC detector

Question: Are there any aspects you would like to adjust for the second year?

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WG Charge and Priorities

Priorities for FY23-24 :

  • Enforcing modularity for clear separation between the development of reconstruction algorithms and the development of the framework and its services
  • Embrace algorithmic development that utilizes the holistic information from detector components or the entire detector
  • Integrate far-forward and far-backward detectors in reconstruction (merge into point 2)
  • Implement a web-based event display. ( how to organize this? )

Propose to add:

  • Integrate the existing workflow to support advanced application development and physics analysis.

ePIC Software & Computing News, April 22, 2024.

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Charge:

Development of a holistic and modular reconstruction for the integrated ePIC detector

Question: Are there any aspects you would like to adjust for the second year?

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Year One Highlights

Key achievements and milestones:

  • Developed a full chain of ACTS-based track reconstruction with auto material map generation, realistic seed finder, combinatorial track finding/fitting, ambiguity solver, and primary vertexing.
  • Implemented initial prototype of electron-finder, which includes the implementation of track-calorimeter projections
  • Made progress towards the implementation of particle flow in ePIC
  • Made significant improvements across EICrecon (e.g. in the jet software)

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Major impacts and successes:

  • Enabled tracking performance study with realistic event and beam background.
  • Supported internal review of tracking detectors

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ePIC Software & Computing News, April 22, 2024.

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Current Priorities and Plans

  • Current Priorities/Focus Areas
    • TDR readiness:
      • in-depth study of hit level tracking quality checks and validation of extreme tracks (e.g. off axis)
      • Demonstrate tracking and vertexing performance with DIS+background events and timeframe.
      • Improving existing truth-cluster associations
      • Improved cluster merging & splitting
      • Enabling dead area and channel-by-channel noise injection in digitization
      • integration of far-forward / backward systems

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  • Other main tasks for the coming months
    • Next month:
      • Completion of TDR tasks

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    • Post-TDR Software Release:
      • Develop advanced algorithms (e.g. PID and track-particle matching)
      • Work towards specialization of calorimetry digitization
      • Restart dedicated Particle Flow development
      • Implementation of jet data model

ePIC Software & Computing News, April 22, 2024.

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Engagement in WG

  • Rough estimate of active members contributing to tasks or attending meetings

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    • Biweekly reconstruction meeting:
      • Meeting attendance: 15 ~ 20 (inclusive) so far
      • Contributors: at least 12 (with multiple people engaged in multiple groups)
      • Several new collaborators from recently admitted institutions

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    • Weekly joint tracking, reconstruction, and vertexing meeting:
      • attendance: ~20
      • contributors: ~15

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  • Discussion on improving engagement.
    • Further engagement with DSCs
    • Joint tracking meeting to attract more attendees.
    • Small group developer discussions → regular reconstruction WG meeting to share progress and build synergy.

ePIC Software & Computing News, April 22, 2024.

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Opportunities for Involvement

  • Example tasks available for new/interested collaboration members:

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    • Tracking
      • hits charge-sharing and clustering
      • benchmark analysis: efficiency, purity, resolution, etc…
      • detector (mis)alignment
      • secondary vertexing
      • prepare ACTS surfaces on non-tracking detectors to allow track projection

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    • Calorimetry
      • (Continued) Implementation of a waveform emulator*
      • Development of an HGCROC-specific digitization algorithm

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    • Particle Flow
      • (Continued) development of track/cluster visualization scripts*
      • Supporting initial implementation of PFAlpha

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    • Jets
      • Implementation of a jet data model

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*Some work on topic has been done or is ongoing

ePIC Software & Computing News, April 22, 2024.

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