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Migrate RecHit-based rho producer to use HCal noise cuts from GT #43176

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Nov 28, 2023
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Migrate RecHit-based rho producer to use HCal noise cuts from GT #43176

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41 changes: 33 additions & 8 deletions RecoJets/JetProducers/plugins/FixedGridRhoProducerFastjetFromRecHit.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,8 @@ So this recHit-based rho producer, FixedGridRhoProducerFastjetFromRecHit, can be
#include "CondFormats/DataRecord/interface/EcalPFRecHitThresholdsRcd.h"
#include "fastjet/tools/GridMedianBackgroundEstimator.hh"
#include "RecoEgamma/EgammaIsolationAlgos/interface/EgammaHcalIsolation.h"
#include "CondFormats/DataRecord/interface/HcalPFCutsRcd.h"
#include "CondTools/Hcal/interface/HcalPFCutsHandler.h"

class FixedGridRhoProducerFastjetFromRecHit : public edm::stream::EDProducer<> {
public:
Expand All @@ -35,9 +37,10 @@ class FixedGridRhoProducerFastjetFromRecHit : public edm::stream::EDProducer<> {
static void fillDescriptions(edm::ConfigurationDescriptions &descriptions);

private:
void beginRun(edm::Run const &, edm::EventSetup const &) override;
void produce(edm::Event &, const edm::EventSetup &) override;
std::array<double, 4> getHitP4(const DetId &detId, const double hitE, const CaloGeometry &caloGeometry) const;
bool passedHcalNoiseCut(const HBHERecHit &hit) const;
bool passedHcalNoiseCut(const HBHERecHit &hit, const HcalPFCuts *) const;
bool passedEcalNoiseCut(const EcalRecHit &hit, const EcalPFRecHitThresholds &thresholds) const;

fastjet::GridMedianBackgroundEstimator bge_;
Expand All @@ -55,6 +58,11 @@ class FixedGridRhoProducerFastjetFromRecHit : public edm::stream::EDProducer<> {

const edm::ESGetToken<EcalPFRecHitThresholds, EcalPFRecHitThresholdsRcd> ecalPFRecHitThresholdsToken_;
const edm::ESGetToken<CaloGeometry, CaloGeometryRecord> caloGeometryToken_;

// following are needed to grab HCal thresholds from GT
edm::ESGetToken<HcalPFCuts, HcalPFCutsRcd> hcalCutsToken_;
const bool cutsFromDB_;
HcalPFCuts const *paramPF_ = nullptr;
};

FixedGridRhoProducerFastjetFromRecHit::FixedGridRhoProducerFastjetFromRecHit(const edm::ParameterSet &iConfig)
Expand All @@ -67,11 +75,15 @@ FixedGridRhoProducerFastjetFromRecHit::FixedGridRhoProducerFastjetFromRecHit(con
skipHCAL_(iConfig.getParameter<bool>("skipHCAL")),
skipECAL_(iConfig.getParameter<bool>("skipECAL")),
ecalPFRecHitThresholdsToken_{esConsumes()},
caloGeometryToken_{esConsumes()} {
caloGeometryToken_{esConsumes()},
cutsFromDB_(iConfig.getParameter<bool>("usePFThresholdsFromDB")) {
if (skipHCAL_ && skipECAL_) {
throw cms::Exception("FixedGridRhoProducerFastjetFromRecHit")
<< "skipHCAL and skipECAL both can't be True. Please make at least one of them False.";
}
if (cutsFromDB_) {
hcalCutsToken_ = esConsumes<HcalPFCuts, HcalPFCutsRcd, edm::Transition::BeginRun>(edm::ESInputTag("", "withTopo"));
}
produces<double>();
}

Expand All @@ -89,11 +101,18 @@ void FixedGridRhoProducerFastjetFromRecHit::fillDescriptions(edm::ConfigurationD
desc.add<std::vector<double> >("eThresHE", {0.1, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2});
desc.add<double>("maxRapidity", 2.5);
desc.add<double>("gridSpacing", 0.55);
desc.add<bool>("usePFThresholdsFromDB", true);
descriptions.addWithDefaultLabel(desc);
}

FixedGridRhoProducerFastjetFromRecHit::~FixedGridRhoProducerFastjetFromRecHit() = default;

void FixedGridRhoProducerFastjetFromRecHit::beginRun(edm::Run const &r, edm::EventSetup const &es) {
if (cutsFromDB_) {
paramPF_ = &es.getData(hcalCutsToken_);
}
}

void FixedGridRhoProducerFastjetFromRecHit::produce(edm::Event &iEvent, const edm::EventSetup &iSetup) {
std::vector<fastjet::PseudoJet> inputs;
auto const &thresholds = iSetup.getData(ecalPFRecHitThresholdsToken_);
Expand All @@ -103,7 +122,7 @@ void FixedGridRhoProducerFastjetFromRecHit::produce(edm::Event &iEvent, const ed
auto const &hbheRecHits = iEvent.get(hbheRecHitsTag_);
inputs.reserve(inputs.size() + hbheRecHits.size());
for (const auto &hit : hbheRecHits) {
if (passedHcalNoiseCut(hit)) {
if (passedHcalNoiseCut(hit, paramPF_)) {
const auto &hitp4 = getHitP4(hit.id(), hit.energy(), caloGeometry);
inputs.emplace_back(fastjet::PseudoJet(hitp4[0], hitp4[1], hitp4[2], hitp4[3]));
}
Expand Down Expand Up @@ -147,11 +166,17 @@ std::array<double, 4> FixedGridRhoProducerFastjetFromRecHit::getHitP4(const DetI
}

//HCAL noise cleaning cuts.
bool FixedGridRhoProducerFastjetFromRecHit::passedHcalNoiseCut(const HBHERecHit &hit) const {
const auto thisDetId = hit.id();
const auto thisDepth = thisDetId.depth();
return (thisDetId.subdet() == HcalBarrel && hit.energy() > eThresHB_[thisDepth - 1]) ||
(thisDetId.subdet() == HcalEndcap && hit.energy() > eThresHE_[thisDepth - 1]);
bool FixedGridRhoProducerFastjetFromRecHit::passedHcalNoiseCut(const HBHERecHit &hit,
const HcalPFCuts *hcalcuts) const {
if (hcalcuts != nullptr) { // using hcal cuts from DB
const HcalPFCut *item = hcalcuts->getValues(hit.id().rawId());
return (hit.energy() > item->noiseThreshold());
} else { // using hcal cuts from config file
const auto thisDetId = hit.id();
const auto thisDepth = thisDetId.depth();
return (thisDetId.subdet() == HcalBarrel && hit.energy() > eThresHB_[thisDepth - 1]) ||
(thisDetId.subdet() == HcalEndcap && hit.energy() > eThresHE_[thisDepth - 1]);
}
}

//ECAL noise cleaning cuts using per-crystal PF-recHit thresholds.
Expand Down