cms-sw · cmsbuild · Aug 5, 2025 · Jul 28, 2025
diff --git a/Configuration/Eras/python/Era_Run2_2016_UPC_cff.py b/Configuration/Eras/python/Era_Run2_2016_UPC_cff.py
@@ -3,6 +3,7 @@
 from Configuration.Eras.Era_Run2_2016_cff import Run2_2016
 from Configuration.ProcessModifiers.egamma_lowPt_exclusive_cff import egamma_lowPt_exclusive
 from Configuration.Eras.Modifier_highBetaStar_cff import highBetaStar
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
 from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
 
-Run2_2016_UPC = cms.ModifierChain(Run2_2016, egamma_lowPt_exclusive, highBetaStar, run3_upc)
+Run2_2016_UPC = cms.ModifierChain(Run2_2016, egamma_lowPt_exclusive, highBetaStar, dedx_lfit, run3_upc)
diff --git a/Configuration/Eras/python/Era_Run3_2023_UPC_cff.py b/Configuration/Eras/python/Era_Run3_2023_UPC_cff.py
@@ -3,6 +3,7 @@
 from Configuration.Eras.Era_Run3_2023_cff import Run3_2023
 from Configuration.ProcessModifiers.egamma_lowPt_exclusive_cff import egamma_lowPt_exclusive
 from Configuration.Eras.Modifier_highBetaStar_cff import highBetaStar
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
 from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
 
-Run3_2023_UPC = cms.ModifierChain(Run3_2023, egamma_lowPt_exclusive, highBetaStar, run3_upc)
+Run3_2023_UPC = cms.ModifierChain(Run3_2023, egamma_lowPt_exclusive, highBetaStar, dedx_lfit, run3_upc)
diff --git a/Configuration/Eras/python/Era_Run3_2024_UPC_cff.py b/Configuration/Eras/python/Era_Run3_2024_UPC_cff.py
@@ -3,6 +3,7 @@
 from Configuration.Eras.Era_Run3_2024_cff import Run3_2024
 from Configuration.ProcessModifiers.egamma_lowPt_exclusive_cff import egamma_lowPt_exclusive
 from Configuration.Eras.Modifier_highBetaStar_cff import highBetaStar
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
 from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
 
-Run3_2024_UPC = cms.ModifierChain(Run3_2024, egamma_lowPt_exclusive, highBetaStar, run3_upc)
+Run3_2024_UPC = cms.ModifierChain(Run3_2024, egamma_lowPt_exclusive, highBetaStar, dedx_lfit, run3_upc)
diff --git a/Configuration/Eras/python/Era_Run3_2025_OXY_cff.py b/Configuration/Eras/python/Era_Run3_2025_OXY_cff.py
@@ -1,7 +1,8 @@
 import FWCore.ParameterSet.Config as cms
 
 from Configuration.Eras.Era_Run3_2025_cff import Run3_2025
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
 from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
 from Configuration.Eras.Modifier_run3_oxygen_cff import run3_oxygen
 
-Run3_2025_OXY = cms.ModifierChain(Run3_2025, run3_upc, run3_oxygen)
+Run3_2025_OXY = cms.ModifierChain(Run3_2025, dedx_lfit, run3_upc, run3_oxygen)
diff --git a/Configuration/Eras/python/Era_Run3_2025_UPC_cff.py b/Configuration/Eras/python/Era_Run3_2025_UPC_cff.py
@@ -3,6 +3,7 @@
 from Configuration.Eras.Era_Run3_2025_cff import Run3_2025
 from Configuration.ProcessModifiers.egamma_lowPt_exclusive_cff import egamma_lowPt_exclusive
 from Configuration.Eras.Modifier_highBetaStar_cff import highBetaStar
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
 from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
 
-Run3_2025_UPC = cms.ModifierChain(Run3_2025, egamma_lowPt_exclusive, highBetaStar, run3_upc)
+Run3_2025_UPC = cms.ModifierChain(Run3_2025, egamma_lowPt_exclusive, highBetaStar, dedx_lfit, run3_upc)
diff --git a/Configuration/Eras/python/Modifier_dedx_lfit_cff.py b/Configuration/Eras/python/Modifier_dedx_lfit_cff.py
@@ -0,0 +1,3 @@
+import FWCore.ParameterSet.Config as cms
+
+dedx_lfit =cms.Modifier()
diff --git a/Configuration/PyReleaseValidation/python/relval_steps.py b/Configuration/PyReleaseValidation/python/relval_steps.py
@@ -3570,6 +3570,7 @@ def gen2024HiMix(fragment,howMuch):
                                          '-n':100,
                                          '--era':'Run3_pp_on_PbPb',
                                          '--procModifiers':'genJetSubEvent',
+                                         '--customise':'IOPool/Input/fixReading_12_4_X_Files.fixReading_12_4_X_Files'
                                      },hiDefaults2022_ppReco,step3Up2015Defaults])
 
 steps['ALCARECOHI2022PPRECO']=merge([hiDefaults2022_ppReco,{'-s':'ALCA:TkAlMinBias+SiStripCalMinBias',

diff --git a/DataFormats/TrackReco/interface/DeDxData.h b/DataFormats/TrackReco/interface/DeDxData.h
@@ -8,7 +8,8 @@ namespace reco {
   class DeDxData {
   public:
     DeDxData();
-    DeDxData(float val, float er, unsigned int num);
+    DeDxData(float val, int nsat, unsigned int num);
+    DeDxData(float val, float er, int sat, unsigned int num);
     virtual ~DeDxData();
     float dEdx() const;
     float dEdxError() const;
@@ -19,6 +20,7 @@ namespace reco {
     float value_;
     float error_;
     unsigned int numberOfMeasurements_;
+    int numberOfSatMeasurements_;
   };
 
   //Association Track -> float estimator

diff --git a/DataFormats/TrackReco/src/DeDxData.cc b/DataFormats/TrackReco/src/DeDxData.cc
@@ -2,19 +2,24 @@
 
 using namespace reco;
 
-DeDxData::DeDxData() : value_(0.), error_(0.), numberOfMeasurements_(0) { ; }
+DeDxData::DeDxData() : value_(0.), error_(0.), numberOfMeasurements_(0), numberOfSatMeasurements_(0) { ; }
 
-DeDxData::DeDxData(float val, float er, unsigned int num) : value_(val), error_(er), numberOfMeasurements_(num) { ; }
+DeDxData::DeDxData(float val, int sat, unsigned int num)
+    : value_(val), error_(-1.), numberOfMeasurements_(num), numberOfSatMeasurements_(sat) {
+  ;
+}
+
+DeDxData::DeDxData(float val, float er, int sat, unsigned int num)
+    : value_(val), error_(er), numberOfMeasurements_(num), numberOfSatMeasurements_(sat) {
+  ;
+}
 
 DeDxData::~DeDxData() { ; }
 
 float DeDxData::dEdx() const { return value_; }
 
-float DeDxData::dEdxError() const {
-  return -1;
-  /*error_;*/
-}
+float DeDxData::dEdxError() const { return error_; }
 
 unsigned int DeDxData::numberOfMeasurements() const { return numberOfMeasurements_; }
 
-int DeDxData::numberOfSaturatedMeasurements() const { return error_ >= 0 ? (int)error_ : 0; }
+int DeDxData::numberOfSaturatedMeasurements() const { return numberOfSatMeasurements_; }
diff --git a/DataFormats/TrackReco/src/classes_def.xml b/DataFormats/TrackReco/src/classes_def.xml
@@ -426,7 +426,8 @@
   </class>
   <class name="std::pair<edm::Ref<std::vector<reco::Track>,reco::Track,edm::refhelper::FindUsingAdvance<std::vector<reco::Track>,reco::Track> >,std::vector<reco::DeDxHit> >" />
      <!--   <class name="reco::DeDxDataCollection"/> -->
-     <class name="reco::DeDxData" ClassVersion="10">
+     <class name="reco::DeDxData" ClassVersion="11">
+      <version ClassVersion="11" checksum="30657010"/>
       <version ClassVersion="10" checksum="204721063"/>
      </class>
      <class name="reco::DeDxDataCollection"/>

diff --git a/FastSimulation/SimplifiedGeometryPropagator/plugins/FastTrackDeDxProducer.cc b/FastSimulation/SimplifiedGeometryPropagator/plugins/FastTrackDeDxProducer.cc
@@ -231,10 +231,7 @@ void FastTrackDeDxProducer::produce(edm::Event& iEvent, const edm::EventSetup&)
 
     sort(dedxHits.begin(), dedxHits.end(), less<DeDxHit>());
     std::pair<float, float> val_and_error = m_estimator->dedx(dedxHits);
-    //WARNING: Since the dEdX Error is not properly computed for the moment
-    //It was decided to store the number of saturating cluster in that dataformat
-    val_and_error.second = NClusterSaturating;
-    dedxEstimate[j] = DeDxData(val_and_error.first, val_and_error.second, dedxHits.size());
+    dedxEstimate[j] = DeDxData(val_and_error.first, val_and_error.second, NClusterSaturating, dedxHits.size());
   }
 
   filler.insert(trackCollectionHandle, dedxEstimate.begin(), dedxEstimate.end());

diff --git a/PhysicsTools/PatAlgos/python/slimming/slimming_cff.py b/PhysicsTools/PatAlgos/python/slimming/slimming_cff.py
@@ -121,14 +121,15 @@
 from Configuration.ProcessModifiers.photonDRN_cff import _photonDRN
 _photonDRN.toReplaceWith(slimmingTask, cms.Task(slimmingTask.copy(), patPhotonsDRN))
 
-from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
 from PhysicsTools.PatAlgos.modules import DeDxEstimatorRekeyer
 dedxEstimator = DeDxEstimatorRekeyer()
-run3_upc.toModify(dedxEstimator, dedxEstimators = ["dedxHarmonic2", "dedxPixelHarmonic2", "dedxPixelLikelihood", "dedxStripLikelihood", "dedxAllLikelihood"])
+dedx_lfit.toModify(dedxEstimator, dedxEstimators = ["dedxPixelLikelihood", "dedxStripLikelihood", "dedxAllLikelihood"])
+
+from Configuration.Eras.Modifier_run3_upc_cff import run3_upc
 run3_upc.toReplaceWith(slimmingTask, cms.Task(slimmingTask.copy(), hiPixelTracks, packedPFCandidateTrackChi2, lostTrackChi2, dedxEstimator))
 
 from Configuration.Eras.Modifier_run3_oxygen_cff import run3_oxygen
-run3_oxygen.toModify(dedxEstimator, dedxEstimators = ["dedxPixelLikelihood", "dedxStripLikelihood", "dedxAllLikelihood"])
 run3_oxygen.toReplaceWith(slimmingTask, cms.Task(slimmingTask.copy(), hiPixelTracks, hiEvtPlane, hiEvtPlaneFlat, packedPFCandidateTrackChi2, lostTrackChi2, centralityBin))
 
 from Configuration.Eras.Modifier_ppRef_2024_cff import ppRef_2024

diff --git a/RecoTracker/Configuration/python/RecoTracker_EventContent_cff.py b/RecoTracker/Configuration/python/RecoTracker_EventContent_cff.py
@@ -23,7 +23,8 @@
 (pp_on_AA | run3_upc).toModify( RecoTrackerAOD.outputCommands,
                    func=lambda outputCommands: outputCommands.extend(['keep recoTracks_hiConformalPixelTracks_*_*'])
 )
-run3_upc.toModify( RecoTrackerAOD.outputCommands,
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
+dedx_lfit.toModify( RecoTrackerAOD.outputCommands,
         func=lambda outputCommands: outputCommands.extend([
             'keep *_dedxPixelLikelihood_*_*',
             'keep *_dedxStripLikelihood_*_*',

diff --git a/RecoTracker/DeDx/plugins/DeDxEstimatorProducer.cc b/RecoTracker/DeDx/plugins/DeDxEstimatorProducer.cc
@@ -156,10 +156,7 @@ void DeDxEstimatorProducer::produce(edm::Event& iEvent, const edm::EventSetup& i
     sort(dedxHits.begin(), dedxHits.end(), less<DeDxHit>());
     std::pair<float, float> val_and_error = m_estimator->dedx(dedxHits);
 
-    //WARNING: Since the dEdX Error is not properly computed for the moment
-    //It was decided to store the number of saturating cluster in that dataformat
-    val_and_error.second = NClusterSaturating;
-    dedxEstimate[j] = DeDxData(val_and_error.first, val_and_error.second, dedxHits.size());
+    dedxEstimate[j] = DeDxData(val_and_error.first, val_and_error.second, NClusterSaturating, dedxHits.size());
   }
   ///////////////////////////////////////
 

diff --git a/RecoTracker/DeDx/python/dedxEstimators_cff.py b/RecoTracker/DeDx/python/dedxEstimators_cff.py
@@ -117,5 +117,5 @@
 dedxPixelLikelihood = dedxAllLikelihood.clone(UseStrip = False, UsePixel = True)
 dedxStripLikelihood = dedxAllLikelihood.clone(UseStrip = True,  UsePixel = False)
 
-from Configuration.Eras.Modifier_run3_egamma_2023_cff import run3_egamma_2023
-run3_upc.toReplaceWith(doAlldEdXEstimatorsTask, cms.Task(doAlldEdXEstimatorsTask.copy(), dedxAllHitInfo, dedxHitCalibrator, dedxStripLikelihood, dedxPixelLikelihood, dedxAllLikelihood))
+from Configuration.Eras.Modifier_dedx_lfit_cff import dedx_lfit
+dedx_lfit.toReplaceWith(doAlldEdXEstimatorsTask, cms.Task(doAlldEdXEstimatorsTask.copy(), dedxAllHitInfo, dedxHitCalibrator, dedxStripLikelihood, dedxPixelLikelihood, dedxAllLikelihood))
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		import FWCore.ParameterSet.Config as cms

		dedx_lfit =cms.Modifier()