WIP: rec_ordered(rec) and sim_ordered(sim) debug

benchmarks/dvmp/analysis/dvmp.h

@@ -205,9 +205,9 @@ namespace util {
     double    Q2         = -q.Dot(q);
     double t = 0.;
     if(parts[4].px() == 0. && parts[4].py() == 0. && parts[4].pz() == 0. && parts[4].mass() == 0.){
-        t = Delta.Dot(Delta);
-    }else{
         t = Delta_prime.Dot(Delta_prime);
+    }else{
+        t = Delta.Dot(Delta);
     }
     
     inv_quant quantities = {nu, Q2, Q2/2./P.mass()/nu, t};