[PWGLF] add setting_cutChi2NClITS configurable (#10620)

Co-authored-by: blacw <blacw@blacwdeMacBook-Air.local>

Author: blacwovie

PWGLF/TableProducer/Nuspex/he3HadronFemto.cxx

@@ -140,6 +140,8 @@ struct he3HadCandidate {
 
   uint8_t NClsITSHe3 = 0u;
   uint8_t NClsITSHad = 0u;
+  float Chi2NClITSHe3 = -10.f;
+  float Chi2NClITSHad = -10.f;
 
   bool isBkgUS = false; // unlike sign
   bool isBkgEM = false; // event mixing
@@ -178,6 +180,7 @@ struct he3hadronfemto {
   Configurable<float> setting_cutPtMinhe3Had{"setting_cutPtMinhe3Had", 0.0f, "Minimum PT cut on he3Had4"};
   Configurable<float> setting_cutClSizeItsHe3{"setting_cutClSizeItsHe3", 4.0f, "Minimum ITS cluster size for He3"};
   Configurable<float> setting_cutNCls{"setting_cutNCls", 5.0f, "Minimum ITS Ncluster for tracks"};
+  Configurable<float> setting_cutChi2NClITS{"setting_cutChi2NClITS", 36.f, "Maximum ITS Chi2 for tracks"};
   Configurable<float> setting_cutNsigmaTPC{"setting_cutNsigmaTPC", 3.0f, "Value of the TPC Nsigma cut"};
   Configurable<float> setting_cutNsigmaITS{"setting_cutNsigmaITS", -1.5f, "Value of the TPC Nsigma cut"};
   Configurable<float> setting_cutPtMinTOFHad{"setting_cutPtMinTOFHad", 0.4f, "Minimum pT to apply the TOF cut on hadrons"};
@@ -245,6 +248,8 @@ struct he3hadronfemto {
       {"hDCAzHe3", ";DCA_{z} (cm)", {HistType::kTH1F, {{200, -1.0f, 1.0f}}}},
       {"hNClsHe3ITS", ";N_{ITS} Cluster", {HistType::kTH1F, {{20, -10.0f, 10.0f}}}},
       {"hNClsHadITS", ";N_{ITS} Cluster", {HistType::kTH1F, {{20, -10.0f, 10.0f}}}},
+      {"hChi2NClHe3ITS", ";Chi2_{ITS} Ncluster", {HistType::kTH1F, {{100, 0, 100.0f}}}},
+      {"hChi2NClHadITS", ";Chi2_{ITS} Ncluster", {HistType::kTH1F, {{100, 0, 100.0f}}}},
       {"hhe3HadtInvMass", "; M(^{3}He + p) (GeV/#it{c}^{2})", {HistType::kTH1F, {{300, 3.74f, 4.34f}}}},
       {"hHe3Pt", "#it{p}_{T} distribution; #it{p}_{T} (GeV/#it{c})", {HistType::kTH1F, {{240, -6.0f, 6.0f}}}},
       {"hHadronPt", "Pt distribution; #it{p}_{T} (GeV/#it{c})", {HistType::kTH1F, {{120, -3.0f, 3.0f}}}},
@@ -389,7 +394,7 @@ struct he3hadronfemto {
         candidate.tpcNClsCrossedRows() < 0.8 * candidate.tpcNClsFindable() ||
         candidate.tpcChi2NCl() > 4.f ||
         candidate.tpcChi2NCl() < setting_cutChi2tpcLow ||
-        candidate.itsChi2NCl() > 36.f) {
+        candidate.itsChi2NCl() > setting_cutChi2NClITS) {
       return false;
     }
 
@@ -586,6 +591,8 @@ struct he3hadronfemto {
 
     he3Hadcand.NClsITSHe3 = trackHe3.itsNCls();
     he3Hadcand.NClsITSHad = trackHad.itsNCls();
+    he3Hadcand.Chi2NClITSHe3 = trackHe3.itsChi2NCl();
+    he3Hadcand.Chi2NClITSHad = trackHad.itsChi2NCl();
 
     he3Hadcand.sharedClustersHe3 = trackHe3.tpcNClsShared();
     he3Hadcand.sharedClustersHad = trackHad.tpcNClsShared();
@@ -761,6 +768,8 @@ struct he3hadronfemto {
     m_qaRegistry.fill(HIST("hDCAzHe3"), he3Hadcand.DCAzHe3);
     m_qaRegistry.fill(HIST("hNClsHe3ITS"), he3Hadcand.NClsITSHe3);
     m_qaRegistry.fill(HIST("hNClsHadITS"), he3Hadcand.NClsITSHad);
+    m_qaRegistry.fill(HIST("hChi2NClHe3ITS"), he3Hadcand.Chi2NClITSHe3);
+    m_qaRegistry.fill(HIST("hChi2NClHadITS"), he3Hadcand.Chi2NClITSHad);
   }
 
   // ==================================================================================================================