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[PWGJE] PWGJE - fix jetBackgroundAnalysis RC without 2 leading jets #9628

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Jan 30, 2025
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[PWGJE] PWGJE - fix jetBackgroundAnalysis RC without 2 leading jets #9628

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21 changes: 11 additions & 10 deletions PWGJE/Tasks/jetBackgroundAnalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -121,31 +121,31 @@
}
TRandom3 randomNumber(0);
float randomConeEta = randomNumber.Uniform(trackEtaMin + randomConeR, trackEtaMax - randomConeR);
float randomConePhi = randomNumber.Uniform(0.0, 2 * M_PI);

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[external-pi] 

Consider using the PI constant (and its multiples and fractions) defined in o2::constants::math.
float randomConePt = 0;
for (auto const& track : tracks) {
if (jetderiveddatautilities::selectTrack(track, trackSelection)) {
float dPhi = RecoDecay::constrainAngle(track.phi() - randomConePhi, static_cast<float>(-M_PI));

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[external-pi] 

Consider using the PI constant (and its multiples and fractions) defined in o2::constants::math.
float dEta = track.eta() - randomConeEta;
if (TMath::Sqrt(dEta * dEta + dPhi * dPhi) < randomConeR) {

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[root-entity] 

Consider replacing ROOT entities with equivalents from standard C++ or from O2.
randomConePt += track.pt();
}
}
}
registry.fill(HIST("h2_centrality_rhorandomcone"), collision.centrality(), randomConePt - M_PI * randomConeR * randomConeR * collision.rho());

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[external-pi] 

Consider using the PI constant (and its multiples and fractions) defined in o2::constants::math.

// randomised eta,phi for tracks, to assess part of fluctuations coming from statistically independently emitted particles
randomConePt = 0;
for (auto const& track : tracks) {
if (jetderiveddatautilities::selectTrack(track, trackSelection)) {
float dPhi = RecoDecay::constrainAngle(randomNumber.Uniform(0.0, 2 * M_PI) - randomConePhi, static_cast<float>(-M_PI)); // ignores actual phi of track

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[external-pi] 

Consider using the PI constant (and its multiples and fractions) defined in o2::constants::math.
float dEta = randomNumber.Uniform(trackEtaMin, trackEtaMax) - randomConeEta; // ignores actual eta of track
if (TMath::Sqrt(dEta * dEta + dPhi * dPhi) < randomConeR) {

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[root-entity] 

Consider replacing ROOT entities with equivalents from standard C++ or from O2.
randomConePt += track.pt();
}
}
}
registry.fill(HIST("h2_centrality_rhorandomconerandomtrackdirection"), collision.centrality(), randomConePt - M_PI * randomConeR * randomConeR * collision.rho());

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[external-pi] 

Consider using the PI constant (and its multiples and fractions) defined in o2::constants::math.

// removing the leading jet from the random cone
if (jets.size() > 0) { // if there are no jets in the acceptance (from the jetfinder cuts) then there can be no leading jet
Expand All @@ -153,7 +153,7 @@
float dEtaLeadingJet = jets.iteratorAt(0).eta() - randomConeEta;

bool jetWasInCone = false;
while ((randomConeLeadJetDeltaR <= 0 && (TMath::Sqrt(dEtaLeadingJet * dEtaLeadingJet + dPhiLeadingJet * dPhiLeadingJet) < jets.iteratorAt(0).r() / 100.0 + randomConeR)) || (randomConeLeadJetDeltaR > 0 && (TMath::Sqrt(dEtaLeadingJet * dEtaLeadingJet + dPhiLeadingJet * dPhiLeadingJet) < randomConeLeadJetDeltaR))) {

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[root-entity] 

Consider replacing ROOT entities with equivalents from standard C++ or from O2.
jetWasInCone = true;
randomConeEta = randomNumber.Uniform(trackEtaMin + randomConeR, trackEtaMax - randomConeR);
randomConePhi = randomNumber.Uniform(0.0, 2 * M_PI);
Expand All @@ -166,28 +166,29 @@
if (jetderiveddatautilities::selectTrack(track, trackSelection)) { // if track selection is uniformTrack, dcaXY and dcaZ cuts need to be added as they aren't in the selection so that they can be studied here
float dPhi = RecoDecay::constrainAngle(track.phi() - randomConePhi, static_cast<float>(-M_PI));
float dEta = track.eta() - randomConeEta;
if (TMath::Sqrt(dEta * dEta + dPhi * dPhi) < randomConeR) {

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[root-entity] 

Consider replacing ROOT entities with equivalents from standard C++ or from O2.
randomConePt += track.pt();
}
}
}
}
}

registry.fill(HIST("h2_centrality_rhorandomconewithoutleadingjet"), collision.centrality(), randomConePt - M_PI * randomConeR * randomConeR * collision.rho());

// randomised eta,phi for tracks, to assess part of fluctuations coming from statistically independently emitted particles, removing tracks from 2 leading jets
double randomConePtWithoutOneLeadJet = 0;
double randomConePtWithoutTwoLeadJet = 0;
for (auto const& track : tracks) {
if (jetderiveddatautilities::selectTrack(track, trackSelection)) {
float dPhi = RecoDecay::constrainAngle(randomNumber.Uniform(0.0, 2 * M_PI) - randomConePhi, static_cast<float>(-M_PI)); // ignores actual phi of track
float dEta = randomNumber.Uniform(trackEtaMin, trackEtaMax) - randomConeEta; // ignores actual eta of track
if (TMath::Sqrt(dEta * dEta + dPhi * dPhi) < randomConeR) {
if (!trackIsInJet(track, jets.iteratorAt(0))) {
randomConePtWithoutOneLeadJet += track.pt();
if (!trackIsInJet(track, jets.iteratorAt(1))) {
randomConePtWithoutTwoLeadJet += track.pt();
if (jets.size() > 1) { // if there are no jets, or just one, in the acceptance (from the jetfinder cuts) then one cannot find 2 leading jets
for (auto const& track : tracks) {
if (jetderiveddatautilities::selectTrack(track, trackSelection)) {
float dPhi = RecoDecay::constrainAngle(randomNumber.Uniform(0.0, 2 * M_PI) - randomConePhi, static_cast<float>(-M_PI)); // ignores actual phi of track
float dEta = randomNumber.Uniform(trackEtaMin, trackEtaMax) - randomConeEta; // ignores actual eta of track
if (TMath::Sqrt(dEta * dEta + dPhi * dPhi) < randomConeR) {

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[root-entity] 

Consider replacing ROOT entities with equivalents from standard C++ or from O2.
if (!trackIsInJet(track, jets.iteratorAt(0))) {
randomConePtWithoutOneLeadJet += track.pt();
if (!trackIsInJet(track, jets.iteratorAt(1))) {
randomConePtWithoutTwoLeadJet += track.pt();
}
}
}
}
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