[PWGCF/FemtoUniverse] Fix: do swapping also for same particles (AliceO2Group#11723)

davkk · web-flow · commit 25e206db7870 · 2025-06-22T12:47:17.000+02:00
diff --git a/PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackExtended.cxx b/PWGCF/FemtoUniverse/Tasks/femtoUniversePairTaskTrackTrackExtended.cxx
@@ -567,7 +567,12 @@ struct FemtoUniversePairTaskTrackTrackExtended {
           weight *= effCorrection.getWeight(ParticleNo::TWO, p2);
         }
 
-        sameEventCont.setPair<isMC>(p1, p2, multCol, twotracksconfigs.confUse3D, weight);
+        if (swpart)
+          sameEventCont.setPair<isMC>(p1, p2, multCol, twotracksconfigs.confUse3D, weight);
+        else
+          sameEventCont.setPair<isMC>(p2, p1, multCol, twotracksconfigs.confUse3D, weight);
+
+        swpart = !swpart;
       }
     }
   }

Original file line number	Diff line number	Diff line change
`@@ -567,7 +567,12 @@ struct FemtoUniversePairTaskTrackTrackExtended {`
`567`	`567`	`weight *= effCorrection.getWeight(ParticleNo::TWO, p2);`
`568`	`568`	`}`
`569`	`569`
`570`		`- sameEventCont.setPair<isMC>(p1, p2, multCol, twotracksconfigs.confUse3D, weight);`
	`570`	`+ if (swpart)`
	`571`	`+ sameEventCont.setPair<isMC>(p1, p2, multCol, twotracksconfigs.confUse3D, weight);`
	`572`	`+ else`
	`573`	`+ sameEventCont.setPair<isMC>(p2, p1, multCol, twotracksconfigs.confUse3D, weight);`
	`574`	`+`
	`575`	`+ swpart = !swpart;`
`571`	`576`	`}`
`572`	`577`	`}`
`573`	`578`	`}`