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Feature/aantonak caf truthfix - #674

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aantonakis wants to merge 4 commits into
production/sbnd-gen2from
feature/aantonak_caf_truthfix
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Feature/aantonak caf truthfix#674
aantonakis wants to merge 4 commits into
production/sbnd-gen2from
feature/aantonak_caf_truthfix

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@aantonakis

@aantonakis aantonakis commented Sep 10, 2026

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Description

Please provide a detailed description of the changes this pull request introduces. If available, also link to a docdb link where the issue/change have been presented on/discussed.

This PR adds missing truth information to the CAFMaker output. Some unstable particles produced in the neutrino interaction such as eta mesons are missing in the CAF truth outputs because they are not propagated to Geant4. The goal of this PR is to identify primary particles of the interaction which are missing their parent particles and to loop back through the decay chain in the generator truth to add in the missing information. This is described in more detail in SBN docdb entry 49027.

  • Have you added a label? (bug/enhancement/physics etc.)
  • Have you assigned at least 1 reviewer?
  • Is this PR related to an open issue / project?
  • Does this PR affect CAF data format? If so, please assign a CAF maintainer as additional reviewer. @Gianluca Petrillo and @thomas Jones
  • Does this PR require merging another PR in a different repository (such as sbnanobj/sbnobj etc.)? If so, please link it in the description.
  • Are you submitting this PR on behalf of someone else who made the code changes? If so, please mention them in the description.

@aantonakis aantonakis added the enhancement New feature or request label Sep 10, 2026
@linyan-w
linyan-w requested a review from kjplows September 10, 2026 12:52
@linyan-w linyan-w moved this to Waiting on Reviewer in SBND 2025 Gen2 Production Sep 10, 2026
@aantonakis
aantonakis removed the request for review from linyan-w September 10, 2026 17:27
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