[PWGJE] Adding option to skip MB events when running the Jet-Jet MC (AliceO2Group#9609)

Author: dajones2

PWGJE/Tasks/jetHadronRecoil.cxx

@@ -64,6 +64,7 @@ struct JetHadronRecoil {
   Configurable<float> pTHatMaxMCD{"pTHatMaxMCD", 999.0, "maximum fraction of hard scattering for jet acceptance in detector MC"};
   Configurable<float> pTHatMaxMCP{"pTHatMaxMCP", 999.0, "maximum fraction of hard scattering for jet acceptance in particle MC"};
   Configurable<std::string> triggerMasks{"triggerMasks", "", "possible JE Trigger masks: fJetChLowPt,fJetChHighPt,fTrackLowPt,fTrackHighPt,fJetD0ChLowPt,fJetD0ChHighPt,fJetLcChLowPt,fJetLcChHighPt,fEMCALReadout,fJetFullHighPt,fJetFullLowPt,fJetNeutralHighPt,fJetNeutralLowPt,fGammaVeryHighPtEMCAL,fGammaVeryHighPtDCAL,fGammaHighPtEMCAL,fGammaHighPtDCAL,fGammaLowPtEMCAL,fGammaLowPtDCAL,fGammaVeryLowPtEMCAL,fGammaVeryLowPtDCAL"};
+  Configurable<bool> skipMBGapEvents{"skipMBGapEvents", false, "flag to choose to reject min. bias gap events; jet-level rejection applied at the jet finder level, here rejection is applied for collision and track process functions"};
 
   Preslice<soa::Join<aod::Charged1MCParticleLevelJets, aod::Charged1MCParticleLevelJetConstituents>> partJetsPerCollision = aod::jet::mcCollisionId;
 
@@ -499,7 +500,7 @@ struct JetHadronRecoil {
     registry.fill(HIST("hZvtxSelected"), collision.posZ());
     fillHistograms(jets, jetsWTA, tracks, 1.0, collision.rho());
   }
-  PROCESS_SWITCH(JetHadronRecoil, processDataWithRhoSubtraction, "process data with rho subtraction", true);
+  PROCESS_SWITCH(JetHadronRecoil, processDataWithRhoSubtraction, "process data with rho subtraction", false);
 
   void processMCD(soa::Filtered<aod::JetCollisions>::iterator const& collision,
                   soa::Filtered<soa::Join<aod::ChargedMCDetectorLevelJets, aod::ChargedMCDetectorLevelJetConstituents, aod::ChargedMCDetectorLevelJetsMatchedToCharged1MCDetectorLevelJets>> const& jets,
@@ -509,6 +510,9 @@ struct JetHadronRecoil {
     if (!jetderiveddatautilities::selectCollision(collision, eventSelection)) {
       return;
     }
+    if (skipMBGapEvents && collision.subGeneratorId() == jetderiveddatautilities::JCollisionSubGeneratorId::mbGap) {
+      return;
+    }
     if (!jetderiveddatautilities::selectTrigger(collision, triggerMaskBits)) {
       return;
     }
@@ -525,6 +529,9 @@ struct JetHadronRecoil {
     if (!jetderiveddatautilities::selectCollision(collision, eventSelection)) {
       return;
     }
+    if (skipMBGapEvents && collision.subGeneratorId() == jetderiveddatautilities::JCollisionSubGeneratorId::mbGap) {
+      return;
+    }
     if (!jetderiveddatautilities::selectTrigger(collision, triggerMaskBits)) {
       return;
     }
@@ -542,6 +549,9 @@ struct JetHadronRecoil {
     if (!jetderiveddatautilities::selectCollision(collision, eventSelection)) {
       return;
     }
+    if (skipMBGapEvents && collision.subGeneratorId() == jetderiveddatautilities::JCollisionSubGeneratorId::mbGap) {
+      return;
+    }
     if (!jetderiveddatautilities::selectTrigger(collision, triggerMaskBits)) {
       return;
     }
@@ -559,6 +569,9 @@ struct JetHadronRecoil {
     if (!jetderiveddatautilities::selectCollision(collision, eventSelection)) {
       return;
     }
+    if (skipMBGapEvents && collision.subGeneratorId() == jetderiveddatautilities::JCollisionSubGeneratorId::mbGap) {
+      return;
+    }
     if (!jetderiveddatautilities::selectTrigger(collision, triggerMaskBits)) {
       return;
     }
@@ -575,6 +588,9 @@ struct JetHadronRecoil {
     if (std::abs(collision.posZ()) > vertexZCut) {
       return;
     }
+    if (skipMBGapEvents && collision.subGeneratorId() == jetderiveddatautilities::JCollisionSubGeneratorId::mbGap) {
+      return;
+    }
     registry.fill(HIST("hZvtxSelected"), collision.posZ());
     fillMCPHistograms(jets, jetsWTA, particles);
   }
@@ -588,6 +604,9 @@ struct JetHadronRecoil {
     if (std::abs(collision.posZ()) > vertexZCut) {
       return;
     }
+    if (skipMBGapEvents && collision.subGeneratorId() == jetderiveddatautilities::JCollisionSubGeneratorId::mbGap) {
+      return;
+    }
     registry.fill(HIST("hZvtxSelected"), collision.posZ(), collision.weight());
     fillMCPHistograms(jets, jetsWTA, particles, collision.weight());
   }