Fixing PID rejection

Author: Zuzanna Chochulska

PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackPhi.cxx

@@ -182,11 +182,11 @@ struct femtoUniversePairTaskTrackPhi {
 
   bool IsProtonRejected(float mom, float nsigmaTPCPi, float nsigmaTOFPi, float nsigmaTPCK, float nsigmaTOFK)
   {
+    if (mom < 0.5)
+      return true;
     if (mom > 0.5) {
       if (TMath::Hypot(nsigmaTOFPi, nsigmaTPCPi) < ConfBothTracks.ConfNsigmaRejectPion) {
         return true;
-      } else if (TMath::Hypot(nsigmaTOFK, nsigmaTPCK) < ConfBothTracks.ConfNsigmaRejectKaon) {
-        return true;
       } else {
         return false;
       }
@@ -236,10 +236,12 @@ struct femtoUniversePairTaskTrackPhi {
 
   bool IsKaonRejected(float mom, float nsigmaTPCPr, float nsigmaTOFPr, float nsigmaTPCPi, float nsigmaTOFPi)
   {
-    if (mom > 0.5) {
-      if (TMath::Hypot(nsigmaTOFPi, nsigmaTPCPi) < ConfBothTracks.ConfNsigmaRejectPion) {
+    if (mom < 0.5){
+      if (TMath::Hypot(nsigmaTOFPr, nsigmaTPCPr) < ConfBothTracks.ConfNsigmaRejectProton) {
         return true;
-      } else if (TMath::Hypot(nsigmaTOFPr, nsigmaTPCPr) < ConfBothTracks.ConfNsigmaRejectProton) {
+      }
+    } else if (mom > 0.5) {
+      if (TMath::Hypot(nsigmaTOFPi, nsigmaTPCPi) < ConfBothTracks.ConfNsigmaRejectPion) {
         return true;
       } else {
         return false;
@@ -271,10 +273,12 @@ struct femtoUniversePairTaskTrackPhi {
 
   bool IsPionRejected(float mom, float nsigmaTPCPr, float nsigmaTOFPr, float nsigmaTPCK, float nsigmaTOFK)
   {
-    if (mom > 0.5) {
-      if (TMath::Hypot(nsigmaTOFK, nsigmaTPCK) < ConfBothTracks.ConfNsigmaRejectKaon) {
+    if (mom < 0.5){
+      if (TMath::Hypot(nsigmaTOFPr, nsigmaTPCPr) < ConfBothTracks.ConfNsigmaRejectProton) {
         return true;
-      } else if (TMath::Hypot(nsigmaTOFPr, nsigmaTPCPr) < ConfBothTracks.ConfNsigmaRejectProton) {
+      }
+    } else if (mom > 0.5) {
+      if (TMath::Hypot(nsigmaTOFK, nsigmaTPCK) < ConfBothTracks.ConfNsigmaRejectKaon) {
         return true;
       } else {
         return false;