Add ITS fake clusters information to the mcMask (#14666)

* Add ITS fake clusters information to the mcMask

* remove redundant check

---------

Co-authored-by: Francesco Mazzaschi <fmazzasc@alipap1.cern.ch>

Author: fmazzasc

Detectors/AOD/src/AODProducerWorkflowSpec.cxx

@@ -1126,7 +1126,7 @@ void AODProducerWorkflowDPL::fillMCTrackLabelsTable(MCTrackLabelCursorType& mcTr
           if (!needToStore(mGIDToTableID)) {
             continue;
           }
-          if (mcTruth.isValid()) { // if not set, -1 will be stored
+          if (mcTruth.isValid()) {                                                                               // if not set, -1 will be stored
             labelHolder.labelID = (mToStore[mcTruth.getSourceID()][mcTruth.getEventID()])[mcTruth.getTrackID()]; // defined by TPC if it contributes, otherwise: by ITS
             if (mcTruth.isFake()) {
               labelHolder.labelMask |= (0x1 << 15);
@@ -1139,6 +1139,21 @@ void AODProducerWorkflowDPL::fillMCTrackLabelsTable(MCTrackLabelCursorType& mcTr
                 }
               }
             }
+            if (trackIndex.includesDet(DetID::ITS)) {
+              auto itsGID = data.getITSContributorGID(trackIndex);
+              auto itsSource = itsGID.getSource();
+              if (itsSource == GIndex::ITS) {
+                auto& itsTrack = data.getITSTrack(itsGID);
+                for (unsigned int iL = 0; iL < 7; ++iL) {
+                  if (itsTrack.isFakeOnLayer(iL)) {
+                    labelHolder.labelMask |= (0x1 << iL);
+                  }
+                }
+              } else if (itsSource == GIndex::ITSAB) {
+                labelHolder.labelMask |= (data.getTrackMCLabel(itsGID).isFake() << 12);
+              }
+            }
+
           } else if (mcTruth.isNoise()) {
             labelHolder.labelMask |= (0x1 << 14);
           }

Framework/Core/include/Framework/AnalysisDataModel.h

@@ -2017,7 +2017,7 @@ namespace aod
 namespace mctracklabel
 {
 DECLARE_SOA_INDEX_COLUMN(McParticle, mcParticle); //! MC particle
-DECLARE_SOA_COLUMN(McMask, mcMask, uint16_t);     //! Bit mask to indicate detector mismatches (bit ON means mismatch). Bit 0-6: mismatch at ITS layer. Bit 7-9: # of TPC mismatches in the ranges 0, 1, 2-3, 4-7, 8-15, 16-31, 32-63, >64. Bit 10: TRD, bit 11: TOF, bit 15: indicates negative label
+DECLARE_SOA_COLUMN(McMask, mcMask, uint16_t);     //! Bit mask to indicate detector mismatches (bit ON means mismatch). Bit 0-6: mismatch at ITS layer. Bit 12: ITSAB tracklet mismatch. Bit 13: ITS-TPC mismatch. Bit 14: isNoise == True (global track), Bit 15: isFake == True (global track)
 } // namespace mctracklabel
 
 DECLARE_SOA_TABLE(McTrackLabels, "AOD", "MCTRACKLABEL", //! Table joined to the track table containing the MC index