[PWGEM/PhotonMeson,PWGJE/EMCal] Add MC smearing functionality and add found FT0 gen histogram (#11918)

Co-authored-by: Nicolas Strangmann <nicolas.strangmann@.cern.ch>

Author: nstrangm

PWGEM/PhotonMeson/Tasks/emcalBcWiseGammaGamma.cxx

@@ -113,10 +113,12 @@ struct EmcalBcWiseGammaGamma {
       mHistManager.add("True/eta_invMassVsPt_HadronicShower", "Reconstructed validated eta meson from hadronic shower;#bf{#it{M}^{#gamma#gamma} (GeV/#it{c}^{2})};#bf{#it{p}_{T}^{#gamma#gamma} (GeV/#it{c})};#bf{FT0M centrality (%)}", HistType::kTH3F, {{400, 0., 0.8}, {200, 0., 20.}, cfgCentralityBinning});
 
       mHistManager.add("Generated/pi0_AllBCs", "pT spectrum of generated pi0s in all BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#pi^{0}}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
+      mHistManager.add("Generated/pi0_FT0", "pT spectrum of generated pi0s in BCs with found FT0;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#pi^{0}}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Generated/pi0_TVX", "pT spectrum of generated pi0s in TVX triggered BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#pi^{0}}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Generated/pi0_kTVXinEMC", "pT spectrum of generated pi0s in kTVXinEMC triggered BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#pi^{0}}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Accepted/pi0_kTVXinEMC", "pT spectrum of accepted pi0s in kTVXinEMC triggered BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#pi^{0}}^{acc}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Generated/eta_AllBCs", "pT spectrum of generated eta mesons in all BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#eta}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
+      mHistManager.add("Generated/eta_FT0", "pT spectrum of generated eta mesons in BCs with found FT0;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#eta}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Generated/eta_TVX", "pT spectrum of generated eta mesons in TVX triggered BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#eta}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Generated/eta_kTVXinEMC", "pT spectrum of generated eta mesons in kTVXinEMC triggered BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#eta}^{gen}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
       mHistManager.add("Accepted/eta_kTVXinEMC", "pT spectrum of accepted eta mesons in kTVXinEMC triggered BCs;#bf{#it{p}_{T} (GeV/#it{c})};#bf{FT0M centrality (%)};#bf{#it{N}_{#eta}^{acc}}", HistType::kTH2F, {{200, 0, 20}, cfgCentralityBinning});
@@ -306,6 +308,8 @@ struct EmcalBcWiseGammaGamma {
     for (const auto& mcPi0 : mcPi0s) {
       if (mcPi0.isPrimary()) {
         mHistManager.fill(HIST("Generated/pi0_AllBCs"), mcPi0.pt(), bc.centrality());
+        if (bc.hasFT0())
+          mHistManager.fill(HIST("Generated/pi0_FT0"), mcPi0.pt(), bc.centrality());
         if (bc.hasTVX())
           mHistManager.fill(HIST("Generated/pi0_TVX"), mcPi0.pt(), bc.centrality());
         if (bc.haskTVXinEMC())
@@ -317,6 +321,8 @@ struct EmcalBcWiseGammaGamma {
     for (const auto& mcEta : mcEtas) {
       if (mcEta.isPrimary()) {
         mHistManager.fill(HIST("Generated/eta_AllBCs"), mcEta.pt(), bc.centrality());
+        if (bc.hasFT0())
+          mHistManager.fill(HIST("Generated/eta_FT0"), mcEta.pt(), bc.centrality());
         if (bc.hasTVX())
           mHistManager.fill(HIST("Generated/eta_TVX"), mcEta.pt(), bc.centrality());
         if (bc.haskTVXinEMC())

PWGJE/TableProducer/emcalCorrectionTask.cxx

@@ -117,6 +117,7 @@ struct EmcalCorrectionTask {
   Configurable<bool> applyTempCalib{"applyTempCalib", false, "Switch to turn on Temperature calibration."};
   Configurable<std::string> pathTempCalibCCDB{"pathTempCalibCCDB", "Users/j/jokonig/EMCalTempCalibParams", "Path in the ccdb where slope and intercept for each cell are stored"}; // change to official path as soon as it is available
   Configurable<bool> useTempCalibMean{"useTempCalibMean", false, "Switch to turn on Temperature mean calculation instead of median."};
+  Configurable<float> mcCellEnergyResolutionBroadening{"mcCellEnergyResolutionBroadening", 0., "Relative widening of the MC cell energy resolution. 0 for no widening, 0.1 for 10% widening, etc. Only applied to MC."};
 
   // Require EMCAL cells (CALO type 1)
   Filter emccellfilter = aod::calo::caloType == selectedCellType;
@@ -488,6 +489,9 @@ struct EmcalCorrectionTask {
         if (static_cast<bool>(hasShaperCorrection) && emcal::intToChannelType(cell.cellType()) == emcal::ChannelType_t::LOW_GAIN) { // Apply shaper correction to LG cells
           amplitude = o2::emcal::NonlinearityHandler::evaluateShaperCorrectionCellEnergy(amplitude);
         }
+        if (mcCellEnergyResolutionBroadening != 0.) {
+          amplitude *= (1. + normalgaus(rdgen) * mcCellEnergyResolutionBroadening); // Fine tune the MC cell energy resolution
+        }
         cellsBC.emplace_back(cell.cellNumber(),
                              amplitude,
                              cell.time() + getCellTimeShift(cell.cellNumber(), amplitude, o2::emcal::intToChannelType(cell.cellType()), runNumber),