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[PWGEM] add option for at least one photon in Dalitz Skimmer #17996

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Merged
jokonig merged 1 commit into from
Sep 21, 2026
+9 −0
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[PWGEM] add option for at least one photon in Dalitz Skimmer #17996

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9 changes: 9 additions & 0 deletions PWGEM/PhotonMeson/TableProducer/skimmerPrimaryElectronFromDalitzEE.h
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Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,7 @@ struct skimmerPrimaryElectronFromDalitzEE {
Configurable<float> maxMee{"maxMee", 0.5, "max. mee to store dalitz ee pairs"};
Configurable<float> minMeegamma{"minMeegamma", 0.3, "min. mee to store eegamma candidates"};
Configurable<float> maxMeegamma{"maxMeegamma", 0.8, "max. mee to store eegamma candidates"};
Configurable<bool> photonsNeeded{"photonsNeeded", true, "require a minimum of one photons per collision"};
Configurable<bool> fillLS{"fillLS", true, "flag to fill LS histograms for QA"};
Configurable<int> fillingMode{"fillingMode", 1, "Filling mode| 1: fill tracks without pair selection, 2: fill tracks from selected pairs, 3: fill tracks from selected pairs that can be combined with a photon"};
Configurable<bool> fillWithEtaMassCut{"fillWithEtaMassCut", true, "only valid for fillingmode 3; true: filling tabled based on eta candidate selection with minMeegamma < M < maxMeegamma, false: fill identical to fillingmode 2"};
Expand Down Expand Up @@ -745,6 +746,10 @@ struct skimmerPrimaryElectronFromDalitzEE {
auto varFillingMode = static_cast<enumFillingMode>(fillingMode.value);

const auto& v0photons_per_coll = v0photons.sliceBy(perCol_pcm, collision.globalIndex());
if (photonsNeeded && v0photons_per_coll.size() == 0) {
continue;
}

const auto& posTracks_per_coll = posTracks->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
const auto& negTracks_per_coll = negTracks->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
const auto& slicedTracks = tracks.sliceBy(perTracksCollision, collision.globalIndex());
Expand Down Expand Up @@ -927,6 +932,10 @@ struct skimmerPrimaryElectronFromDalitzEE {
auto varFillingMode = static_cast<enumFillingMode>(fillingMode.value);

const auto& v0photons_per_coll = v0photons.sliceBy(perCol_pcm, collision.globalIndex());
if (photonsNeeded && v0photons_per_coll.size() == 0) {
continue;
}

const auto& posTracks_per_coll = posTracksMC->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
const auto& negTracks_per_coll = negTracksMC->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
const auto& slicedTracks = tracks.sliceBy(perTracksCollision, collision.globalIndex());
Expand Down
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