Merge pull request cms-sw#33725 from bainbrid/LowPtElectrons_forward_port

LowPtElectrons: support for UL re-MINIAOD and BParking UL RE-RECO

Author: cmsbuild

PhysicsTools/PatAlgos/python/producersLayer1/lowPtElectronProducer_cff.py

@@ -67,22 +67,14 @@
                                                            genParticleMatch = "electronMatch"
                                                            )
 
-# For run2_miniAOD_UL ...
+# For run2_miniAOD_UL: (1) rekey, (2) rerun ID, (3) apply energy regression
 from Configuration.ProcessModifiers.run2_miniAOD_UL_cff import run2_miniAOD_UL
-_makePatLowPtElectronsTask = makePatLowPtElectronsTask.copy()
-
-# (1) rekey seed BDT ValueMaps by reco::GsfElectron
+from Configuration.Eras.Modifier_bParking_cff import bParking
 from RecoEgamma.EgammaElectronProducers.lowPtGsfElectronSeedValueMaps_cff import rekeyLowPtGsfElectronSeedValueMaps
-_makePatLowPtElectronsTask.add(rekeyLowPtGsfElectronSeedValueMaps)
-
-# (2) rerun ID
 from RecoEgamma.EgammaElectronProducers.lowPtGsfElectronID_cfi import lowPtGsfElectronID
-_makePatLowPtElectronsTask.add(lowPtGsfElectronID)
-
-# (3) apply energy regression
 from RecoEgamma.EgammaElectronProducers.lowPtGsfElectrons_cfi import lowPtGsfElectrons
+_makePatLowPtElectronsTask = makePatLowPtElectronsTask.copy()
+_makePatLowPtElectronsTask.add(rekeyLowPtGsfElectronSeedValueMaps)
+_makePatLowPtElectronsTask.add(lowPtGsfElectronID)
 _makePatLowPtElectronsTask.add(lowPtGsfElectrons)
-
-# Append to Task
 run2_miniAOD_UL.toReplaceWith(makePatLowPtElectronsTask,_makePatLowPtElectronsTask)
-

PhysicsTools/PatAlgos/python/selectionLayer1/lowPtElectronSelector_cfi.py

@@ -11,7 +11,7 @@
 
 # Modifier for bParking (fully open selection)
 from Configuration.Eras.Modifier_bParking_cff import bParking
-bParking.toModify(selectedPatLowPtElectrons,cut = "")
+bParking.toModify(selectedPatLowPtElectrons,cut = "pt > 1.")
 
 # Modifiers for legacy AOD
 from Configuration.Eras.Modifier_run2_miniAOD_80XLegacy_cff import run2_miniAOD_80XLegacy

RecoEgamma/EgammaElectronProducers/plugins/LowPtGsfElectronIDProducer.cc

@@ -178,7 +178,7 @@ void LowPtGsfElectronIDProducer::fillDescriptions(edm::ConfigurationDescriptions
   desc.add<double>("MinPtThreshold", 0.5);
   desc.add<double>("MaxPtThreshold", 15.);
   desc.add<std::string>("Version", "V1");
-  descriptions.add("lowPtGsfElectronID", desc);
+  descriptions.add("defaultLowPtGsfElectronID", desc);
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////

RecoEgamma/EgammaElectronProducers/python/lowPtGsfElectronID_cfi.py

@@ -0,0 +1,10 @@
+import FWCore.ParameterSet.Config as cms
+
+from RecoEgamma.EgammaElectronProducers.defaultLowPtGsfElectronID_cfi import defaultLowPtGsfElectronID
+lowPtGsfElectronID = defaultLowPtGsfElectronID.clone()
+
+from Configuration.Eras.Modifier_bParking_cff import bParking
+bParking.toModify(
+    lowPtGsfElectronID,
+    ModelWeights = ["RecoEgamma/ElectronIdentification/data/LowPtElectrons/LowPtElectrons_ID_2021May17.root"],
+)

RecoEgamma/EgammaElectronProducers/python/lowPtGsfElectronSeeds_cfi.py

@@ -48,5 +48,4 @@ def thresholds( wp ) :
 from Configuration.Eras.Modifier_bParking_cff import bParking
 bParking.toModify(lowPtGsfElectronSeeds, 
     ModelThresholds = thresholds("VL"), 
-    MinPtThreshold = 0.5
 )