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This PR:

  • Simple lambda/photon analysis option:
    Adds the possibility to run a simple - yet complete - analysis over photons, lambdas, and antilambdas using the sigma0builder task. This mode is intended primarily for QA and cross-checks.

  • Refined selection cuts:
    Updates rapidity, pseudorapidity, and z-position selections across all tasks. It is now possible to define selection ranges (min/max values), instead of only absolute thresholds. This enables studies of how the analysis behaves when selecting V0s on different TPC sides.

  • Additional QA histograms:
    Introduces a set of QA histograms to support MC-association sanity checks.

  • New index tables:

    • SIGMAINDEX: links SIGMA0CORES -> V0CORES
    • SIGMAMCLABEL: links SIGMA0MCCORES -> MCPARTICLES
  • Configurable histogram declarations:
    Adds configurables to disable unused histograms, reducing memory usage.

More features and minor adjustments will be introduced in a subsequent PR.

@github-actions github-actions bot changed the title [PWGLF ] Updates in sigma0 tasks [PWGLF] Updates in sigma0 tasks Dec 3, 2025
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github-actions bot commented Dec 3, 2025

O2 linter results: ❌ 280 errors, ⚠️ 259 warnings, 🔕 0 disabled

Please consider the following formatting changes to AliceO2Group#14078
@romainschotter romainschotter enabled auto-merge (squash) December 3, 2025 21:22
@romainschotter romainschotter merged commit c47594c into AliceO2Group:master Dec 3, 2025
11 of 14 checks passed
MattOckleton pushed a commit to MattOckleton/O2Physics that referenced this pull request Jan 14, 2026
Co-authored-by: ALICE Action Bot <alibuild@cern.ch>
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3 participants