[PWGDQ] fixed match type for tracks without MC particle (#15897)

aferrero2707 · web-flow · commit 9bd6cea27c56 · 2026-04-22T16:19:57.000+02:00
diff --git a/PWGDQ/Tasks/mftMchMatcher.cxx b/PWGDQ/Tasks/mftMchMatcher.cxx
@@ -565,7 +565,9 @@ struct mftMchMatcher {
     auto const& mftTrack = muonTrack.template matchMFTTrack_as<TMFTS>();
 
     if (!muonTrack.has_mcParticle() || !mftTrack.has_mcParticle()) {
-      return result;
+      // if either the MCH or the MFT tracks are fakes (not associated to any MC particles)
+      // we consider the match as fake
+      return (isBestMatch ? kMatchTypeFakeLeading : kMatchTypeFakeNonLeading);
     }
 
     bool isPaired = isPairedMuon(mchTrack.globalIndex(), matchablePairs);

Original file line number	Diff line number	Diff line change
`@@ -565,7 +565,9 @@ struct mftMchMatcher {`
`565`	`565`	`auto const& mftTrack = muonTrack.template matchMFTTrack_as<TMFTS>();`
`566`	`566`
`567`	`567`	`if (!muonTrack.has_mcParticle() \|\| !mftTrack.has_mcParticle()) {`
`568`		`- return result;`
	`568`	`+ // if either the MCH or the MFT tracks are fakes (not associated to any MC particles)`
	`569`	`+ // we consider the match as fake`
	`570`	`+ return (isBestMatch ? kMatchTypeFakeLeading : kMatchTypeFakeNonLeading);`
`569`	`571`	`}`
`570`	`572`
`571`	`573`	`bool isPaired = isPairedMuon(mchTrack.globalIndex(), matchablePairs);`