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[PWGJE] fixing bug in background eta #15361

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Merged
nzardosh merged 1 commit into from
Mar 12, 2026
+7 −10
Merged

[PWGJE] fixing bug in background eta #15361

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3 changes: 2 additions & 1 deletion PWGJE/Core/JetBkgSubUtils.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@
#include <fastjet/contrib/ConstituentSubtractor.hh>
#include <fastjet/tools/Subtractor.hh>

#include <algorithm>
#include <tuple>
#include <vector>

Expand All @@ -51,7 +52,7 @@ void JetBkgSubUtils::initialise()
// Note: recommended to use R=0.2
jetDefBkg = fastjet::JetDefinition(algorithmBkg, jetBkgR, recombSchemeBkg, fastjet::Best);
areaDefBkg = fastjet::AreaDefinition(fastjet::active_area_explicit_ghosts, ghostAreaSpec);
selRho = fastjet::SelectorEtaRange(bkgEtaMin, bkgEtaMax) && fastjet::SelectorPhiRange(bkgPhiMin, bkgPhiMax) && !fastjet::SelectorNHardest(nHardReject); // here we have to put rap range, to be checked!
selRho = fastjet::SelectorEtaRange(bkgEtaMin + jetBkgR, bkgEtaMax - jetBkgR) && fastjet::SelectorPhiRange(bkgPhiMin, bkgPhiMax) && !fastjet::SelectorNHardest(nHardReject); // here we have to put rap range, to be checked!
}

std::tuple<double, double> JetBkgSubUtils::estimateRhoAreaMedian(const std::vector<fastjet::PseudoJet>& inputParticles, bool doSparseSub)
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14 changes: 5 additions & 9 deletions PWGJE/TableProducer/rhoEstimator.cxx
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Expand Up @@ -79,10 +79,6 @@ struct RhoEstimatorTask {
Configurable<int> jetAlgorithm{"jetAlgorithm", 0, "jet clustering algorithm. 0 = kT, 1 = C/A, 2 = Anti-kT"};
Configurable<int> jetRecombScheme{"jetRecombScheme", 0, "jet recombination scheme. 0 = E-scheme, 1 = pT-scheme, 2 = pT2-scheme"};
Configurable<float> bkgjetR{"bkgjetR", 0.2, "jet resolution parameter for determining background density"};
Configurable<float> bkgEtaMin{"bkgEtaMin", -0.7, "minimim pseudorapidity for determining background density"};
Configurable<float> bkgEtaMax{"bkgEtaMax", 0.7, "maximum pseudorapidity for determining background density"};
Configurable<float> bkgPhiMin{"bkgPhiMin", -6.283, "minimim phi for determining background density"};
Configurable<float> bkgPhiMax{"bkgPhiMax", 6.283, "maximum phi for determining background density"};
Configurable<bool> doSparse{"doSparse", false, "perfom sparse estimation"};
Configurable<double> ghostRapMax{"ghostRapMax", 0.9, "Ghost rapidity max"};
Configurable<int> ghostRepeat{"ghostRepeat", 1, "Ghost tiling repeats"};
Expand Down Expand Up @@ -127,13 +123,13 @@ struct RhoEstimatorTask {

bkgSub.setJetAlgorithmAndScheme(static_cast<fastjet::JetAlgorithm>(static_cast<int>(config.jetAlgorithm)), static_cast<fastjet::RecombinationScheme>(static_cast<int>(config.jetRecombScheme)));
bkgSub.setJetBkgR(config.bkgjetR);
bkgSub.setEtaMinMax(config.bkgEtaMin, config.bkgEtaMax);
bkgPhiMax_ = config.bkgPhiMax;
bkgPhiMin_ = config.bkgPhiMin;
if (config.bkgPhiMax > 98.0) {
bkgSub.setEtaMinMax(config.trackEtaMin, config.trackEtaMax);
bkgPhiMax_ = config.trackPhiMax;
bkgPhiMin_ = config.trackPhiMin;
if (config.trackPhiMax > 98.0) {
bkgPhiMax_ = 2.0 * M_PI;
}
if (config.bkgPhiMin < -98.0) {
if (config.trackPhiMin < -98.0) {
bkgPhiMin_ = -2.0 * M_PI;
}
bkgSub.setPhiMinMax(bkgPhiMin_, bkgPhiMax_);
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