[PWGLF] Add HI Lambda/AntiLambda polarization around jets workflow#15263
Merged
romainschotter merged 44 commits intoAliceO2Group:masterfrom Mar 4, 2026
Merged
[PWGLF] Add HI Lambda/AntiLambda polarization around jets workflow#15263romainschotter merged 44 commits intoAliceO2Group:masterfrom
romainschotter merged 44 commits intoAliceO2Group:masterfrom
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…eroanalysis.cxx code, locally
…ck table subscriptions, added QA histograms (event and V0 selection), derived data production, optimized duplicate parts on the Lambda vs AntiLambda hypothesis checks, added jet clustering.
…ion and some histograms are empty!)
…, adding N Jet constituents column. Renaming tables to keep the "s" convention.
…COMPLETE CODE, just bookkeeping!)
…gic. Will switch to a regular compile-time histogram naming, even though that adds a lot of repeated logic
… Added some missing fills to histograms
… macro to avoid rewriting 20*4 histogram fills by hand (now fixed at compile time). Still not works with current JetPolarizationIons definition (collIdx has trouble with Preslice, as it is a non-monotonic. Possibly O2 is mixing the TimeFrames and combining multiple GlobalIndices in a same subfolder of the derived data)
…o indexing error and physics is correct)
…xactly). Added Lambda rest frame polarization observables to compare with Hydro (still without event plane determination though!)
…r calculation, coarser binning in the LambdaMass axis for signal extraction
…ror propagation! Used TProfiles for convenience and correctness)
…. Adding QA calculations of ring observable with perpendicular jet direction and inverse polarization sign to test hypothesis of true signal
…g Armenteros Lambdas
…r's V0Topo histograms in a subfolder in ROOT
…moving unused centrality estimators.
…ingObservable2ndJetMass QA histogram
cmuncinelli
requested review from
HorstMa,
abmodak,
alibuild,
dmallick2,
ercolessi,
fmazzasc,
gbencedi,
maciacco,
mpuccio,
omvazque,
prottayCMT,
romainschotter,
skundu692 and
smaff92
as code owners
Please consider the following formatting changes to AliceO2Group#15263
Please consider the following formatting changes to AliceO2Group#15263
romainschotter
approved these changes
Mar 4, 2026
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Creates the DataModel header, TableProducer, and derived data consumer for the Lambda/AntiLambda polarization analysis around jets in the HI (OO) context.
This workflow complements PWGLF's "lambdaJetPolarization.cxx" (pp) with HI-specific logic: jet background subtraction, centrality, etc.
New files: lambdaJetPolarizationIons.h, lambdaJetPolarizationIons.cxx, lambdaJetPolarizationIonsDerived.cxx.