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[PWGLF] Fix derived UPC analysis and add Lambda feeddown histograms - #18181

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nepeivodaRS:str-upc-upd
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[PWGLF] Fix derived UPC analysis and add Lambda feeddown histograms#18181
nepeivodaRS wants to merge 4 commits into
AliceO2Group:masterfrom
nepeivodaRS:str-upc-upd

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@nepeivodaRS

@nepeivodaRS nepeivodaRS commented Oct 5, 2026

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Use each MC candidate’s generator to separate UPC and hadronic contributions, even when its vertex has a different MC label.
Add Lambda and AntiLambda feeddown histograms with gap and mass information, and generated Xi and AntiXi denominators.
Fix cascade charge selection, TOF PID cuts, and pion-to-muon handling in MC.
Fix UPC flag checks and QA histogram filling.

@nepeivodaRS
upd
4d8d327 
classification of the MC candidates by the generator ID (vtx assoc.)
upd feeddown matrix calc.
fix some bugs
@github-actions github-actions Bot added the pwglf label Oct 5, 2026
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O2 linter results: ❌ 0 errors, ⚠️ 62 warnings, 🔕 0 disabled

@alibuild alibuild mentioned this pull request Oct 5, 2026
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nepeivodaRS and others added 2 commits October 5, 2026 20:47
@nepeivodaRS
Merge pull request #25 from alibuild/alibot-cleanup-18181
6733279 
Please consider the following formatting changes to AliceO2Group#18181
@nepeivodaRS
[PWGLF] Fix UPC and cascade task lint checks
7427d87 
Remove redundant conditions and initialization, avoid histogram registry shadowing, and mark particle-type branches as compile-time decisions. Suppress cppcheck false positives only on those template comparisons. Restore the MC FT0M centrality join needed by cascqaanalysis.
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