Resolve "pi0 resolution for ECal barrel"

Closes #19 (closed)

benchmarks/barrel_ecal/scripts/emcal_barrel_pions_analysis.cxx

@@ -117,24 +117,17 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
     return result;
   };
 
-  // Relative Energy Resolution = (Esampling - Ethrown)/Esampling
+  // Relative Energy Resolution = (Esampling - Ethrown)/Ethrownnnn
   auto eResol_rel = [](const std::vector<double>& sampled, const std::vector<double>& thrown) {
     std::vector<double> result;
     auto it_sam = sampled.cbegin();
     auto it_thr = thrown.cbegin();
     for (; it_sam != sampled.end() && it_thr != thrown.end(); ++it_sam, ++it_thr) {
-        result.push_back((*it_sam - *it_thr) / *it_sam);
+        result.push_back((*it_sam - *it_thr) / *it_thr);
     }
     return result;
   };
 
-  // Thrown Energy [GeV]
-  auto  charge = [](std::vector<dd4pod::Geant4ParticleData> const& input) {
-    std::vector<double> result;
-    result.push_back(input[2].charge);
-  return result;
-  };
-
   // Define variables
   auto d1 = d0.Define("Ethr",  Ethr,  {"mcparticles"})
 	      .Define("nhits",  nhits,      {"EcalBarrelHits"})
@@ -143,7 +136,6 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
         .Define("fsam",   fsam2,      {"Esim","Ethr"})
         .Define("dE",     eResol,     {"Esim", "Ethr"})
         .Define("dE_rel", eResol_rel, {"Esim", "Ethr"})
-        .Define("charge", charge,     {"mcparticles"})
 	      ;
 
   // Define Histograms
@@ -151,7 +143,6 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   auto hNhits = d1.Histo1D({"hNhits", "Number of hits per events; Number of hits; Events", 100,  0.0, 2000.0}, "nhits");
   auto hEsim  = d1.Histo1D({"hEsim",  "Energy Deposit; Energy Deposit [GeV]; Events",      100,  0.0,    1.0}, "Esim");
   auto hfsam  = d1.Histo1D({"hfsam",  "Sampling Fraction; Sampling Fraction; Events",      100,  0.0,    0.1}, "fsam");
-  auto hcharge = d1.Histo1D({"hcharge", "charge; charge; Count", 10, -2, 2}, "charge");
 
   // Event Counts
   auto nevents_thrown      = d1.Count();
@@ -197,19 +188,11 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   c4->SaveAs("results/emcal_barrel_pions_fsam.png");
   c4->SaveAs("results/emcal_barrel_pions_fsam.pdf");
 
-  TCanvas *c5 = new TCanvas("c5", "c5", 700, 500);
-  hcharge->GetYaxis()->SetTitleOffset(1.4);
-  hcharge->SetLineWidth(2);
-  hcharge->SetLineColor(kBlue);
-  hcharge->DrawClone();
-  c5->SaveAs("results/emcal_barrel_pions_charge.png");
-  c5->SaveAs("results/emcal_barrel_pions_chage.pdf");
-
   //Energy Resolution Work
   auto hdE          = d1.Histo1D({"hdE",      "dE; dE[GeV]; Events",              20, -7.5, 7.5}, "dE");//changed from 100
   auto hdE_rel      = d1.Histo1D({"hdE_rel",  "dE Relative; dE Relative; Events", 20, -7.5, 7.5}, "dE_rel");//changed from 100
-  //hdE_rel->Fit("gaus", "", "", -7.5,  7.5);
-  //double* res       = hdE_rel->GetFunction("gaus")->GetParameters();
+  hdE_rel->Fit("gaus", "", "", -7.5,  7.5);
+  double* res       = hdE_rel->GetFunction("gaus")->GetParameters();
 
   //Pass/Fail
   /*
@@ -219,7 +202,7 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
     pion0_energy_resolution.fail(res[2]);
   }
   */
-  //std::printf("Energy Resolution is %f\n", res[2]);
+  std::printf("Energy Resolution is %f\n", res[2]);
 
   //Energy Resolution Histogram Plotting
   auto *cdE = new TCanvas("cdE", "cdE", 700, 500);
@@ -235,8 +218,8 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   hdE_rel->GetYaxis()->SetTitleOffset(1.4);
   hdE_rel->SetLineWidth(2);
   hdE_rel->SetLineColor(kBlue);
-  //hdE_rel->GetFunction("gaus")->SetLineWidth(2);
-  //hdE_rel->GetFunction("gaus")->SetLineColor(kRed);
+  hdE_rel->GetFunction("gaus")->SetLineWidth(2);
+  hdE_rel->GetFunction("gaus")->SetLineColor(kRed);
   hdE_rel->DrawClone();
   cdE_rel->SaveAs("results/emcal_barrel_pi0_dE_rel.png");
   cdE_rel->SaveAs("results/emcal_barrel_pi0_dE_rel.pdf");