added a histogram for event mixing

sangwoo · sangwoo · commit 860bf7b09c3b · 2025-07-22T15:17:50.000+09:00
diff --git a/PWGLF/Tasks/Resonances/f0980pbpbanalysis.cxx b/PWGLF/Tasks/Resonances/f0980pbpbanalysis.cxx
@@ -20,7 +20,7 @@
 #include <chrono>
 #include <cmath>
 #include <cstdlib>
-// #include <iostream>
+#include <iostream>
 #include <string>
 
 // #include "TLorentzVector.h"
