WIP: Test on PID instead of pmass

benchmarks/dvmp/analysis/dvmp.h

@@ -55,8 +55,8 @@ namespace util {
     return momenta;
   }
   inline double test_jpsi_pt(const std::vector<ROOT::Math::PxPyPzMVector>& momenta){
-    double px = momenta[4].px;
-    double py = momenta[4].py;
+    double px = momenta[4].px();
+    double py = momenta[4].py();
     double pt = sqrt(px*px + py*py);
     return pt;
   }