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

benchmarks/dvmp/analysis/vm_mass.cxx

@@ -14,6 +14,8 @@
 #include <nlohmann/json.hpp>
 #include <string>
 #include <vector>
+#include "eicd/ReconstructedParticleCollection.h"
+#include "eicd/ReconstructedParticleData.h"
 
 // Run VM invariant-mass-based benchmarks on an input reconstruction file for
 // a desired vector meson (e.g. jpsi) and a desired decay particle (e.g. muon)
@@ -82,9 +84,10 @@ 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("N", "p_rec.size()")
+                  .Define("p_rec_test", util::momenta_RC, {"DummyReconstructedParticles"})
+                  .Define("N", "p_rec_test.size()")
                   .Define("p_sim", util::momenta_from_simulation, {"mcparticles2"})
-                  .Define("decay_pair_rec", find_decay_pair, {"p_rec"})
+                  .Define("decay_pair_rec", find_decay_pair, {"p_rec_test"})
                   .Define("decay_pair_sim", find_decay_pair, {"p_sim"})
                   .Define("p_vm_rec", "decay_pair_rec.first + decay_pair_rec.second")
                   .Define("p_vm_sim", "decay_pair_sim.first + decay_pair_sim.second")
@@ -99,19 +102,17 @@ int vm_mass(const std::string& config_name)
                   .Define("eta_sim", "p_vm_sim.eta()");
 
   // Define output histograms
-  auto h_im_rec =
-      d_im.Histo1D({"h_im_rec", ";m_{ll'} (GeV/c^{2});#", 100, -1.1, vm_mass + 5}, "mass_rec");
-  auto h_im_sim =
-      d_im.Histo1D({"h_im_sim", ";m_{ll'} (GeV/c^{2});#", 100, -1.1, vm_mass + 5}, "mass_sim");
+  auto h_im_rec = d_im.Histo1D({"h_im_rec", ";m_{ll'} (GeV/c^{2});#", (int)(vm_mass+0.5)*2*100, 0., 2.*(int)(vm_mass+0.5)}, "mass_rec");
+  auto h_im_sim = d_im.Histo1D({"h_im_sim", ";m_{ll'} (GeV/c^{2});#", (int)(vm_mass+0.5)*2*100, 3.0, 3.2}, "mass_sim");
 
-  auto h_pt_rec = d_im.Histo1D({"h_pt_rec", ";p_{T} (GeV/c);#", 400, 0., 40.}, "pt_rec");
-  auto h_pt_sim = d_im.Histo1D({"h_pt_sim", ";p_{T} (GeV/c);#", 400, 0., 40.}, "pt_sim");
+  auto h_pt_rec = d_im.Histo1D({"h_pt_rec", ";p_{T} (GeV/c);#", 150, 0., 15.}, "pt_rec");
+  auto h_pt_sim = d_im.Histo1D({"h_pt_sim", ";p_{T} (GeV/c);#", 150, 0., 15.}, "pt_sim");
 
   auto h_phi_rec = d_im.Histo1D({"h_phi_rec", ";#phi_{ll'};#", 90, -M_PI, M_PI}, "phi_rec");
   auto h_phi_sim = d_im.Histo1D({"h_phi_sim", ";#phi_{ll'};#", 90, -M_PI, M_PI}, "phi_sim");
 
-  auto h_eta_rec = d_im.Histo1D({"h_eta_rec", ";#eta_{ll'};#", 1000, -5., 5.}, "eta_rec");
-  auto h_eta_sim = d_im.Histo1D({"h_eta_sim", ";#eta_{ll'};#", 1000, -5., 5.}, "eta_sim");
+  auto h_eta_rec = d_im.Histo1D({"h_eta_rec", ";#eta_{ll'};#", 400, -2., 2.}, "eta_rec");
+  auto h_eta_sim = d_im.Histo1D({"h_eta_sim", ";#eta_{ll'};#", 400, -2., 2.}, "eta_sim");
 
   // Plot our histograms.
   // TODO: to start I'm explicitly plotting the histograms, but want to
@@ -135,7 +136,7 @@ int vm_mass(const std::string& config_name)
     h11.GetYaxis()->CenterTitle();
     // draw everything
     h11.DrawClone("hist");
-    h12.DrawClone("hist same");
+    //h12.DrawClone("hist same");
     // FIXME hardcoded beam configuration
     plot::draw_label(10, 100, detector);
     TText* tptr1;