This is really not the place to do this test. Should be done with final output file after reco.

benchmarks/b0_tracker/scripts/b0_tracker_hits.cxx

@@ -36,17 +36,6 @@ void b0_tracker_hits(const char* fname = "./sim_output/sim_forward_protons.root"
 
   ROOT::RDataFrame d0(*t);
 
-
-  auto MC_hits_theta = [&](const std::vector<dd4pod::MonteCarloContrib>& mchits){
-	std::vector<double> result;
-	for (const auto& h : mchits){
-		ROOT::Math::XYZVector vec(h.x,h.y,h.z);
-        result.push_back(1000*vec.theta());
-	}
-	return result;
-  };
-
-
   auto hits_theta = [&](const std::vector<dd4pod::TrackerHitData>& hits) {
     std::vector<double> result;
     for (const auto& h : hits) {
@@ -94,21 +83,14 @@ void b0_tracker_hits(const char* fname = "./sim_output/sim_forward_protons.root"
 
   auto h_local_pos = d1.Histo2D({"h_local_pos", ";x [mm]; y [mm] ", 100,  -100.0, -200.0, 100, -100.0, 100.0}, "x_pos", "y_pos");
 
-  auto d3 = d0.Define("MC_hits_theta", MC_hits_theta, {"mcparticles"});
-
   auto d2 = d0.Define("hits_theta", hits_theta, {"B0TrackerHits"});
 
   auto h1 = d2.Histo1D({"h1", "hits_theta", 100, 0,20}, "hits_theta");
-  auto hMCTheta = d3.Histo1D({"mc_hits_theta", MC_hits_theta, 100, 0,20}, "MC_hits_theta");
   TCanvas* c = new TCanvas();
   h1->DrawCopy();
   c->SaveAs("results/b0_tracker_hits_theta.png");
   c->SaveAs("results/b0_tracker_hits_theta.pdf");
   
-  hMCTheta->DrawCopy();
-  c->SaveAs("results/MC_hits_theta.png");
-  c->SaveAs("results/MC_hits_theta.pdf");
-  
   h_local_pos->DrawCopy("colz");
   c->SaveAs("results/b0_tracker_hits_occupancy_disk_1.png");
   c->SaveAs("results/b0_tracker_hits_occupancy_disk_1.pdf");