Add J/psi resolution; re-write RC with Dummy instead of rc tracks

benchmarks/dvmp/analysis/vm_mass.cxx

@@ -82,7 +82,7 @@ int vm_mass(const std::string& config_name)
   // util::PrintGeant4(mcparticles2);
   // Define analysis flow
   auto d_im = d.Define("p_rec", momenta_from_tracking, {"outputTrackParameters"})
-                  .Define("p_rec_test", util::p_dummy, "DummyReconstructedParticls")
+                  .Define("p_rec_test", util::p_dummy, "DummyReconstructedParticles")
                   .Define("N", "p_rec.size()")
                   .Define("p_sim", util::momenta_from_simulation, {"mcparticles2"})
                   .Define("decay_pair_rec", find_decay_pair, {"p_rec"})