Resolve "pi0 resolution for ECal barrel"

Closes #19 (closed)

benchmarks/barrel_ecal/scripts/emcal_barrel_pions_analysis.cxx

@@ -147,6 +147,8 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   auto hdE_rel      = d1.Histo1D({"hdE_rel",  "dE Relative; dE Relative; Events", 100, -7.5, 7.5}, "dE_rel");
   auto f1           = hdE_rel->Fit("gaus", "S");
   const double* res = f1->GetParams();
+  auto tf1          = new TF1("", "TMath::Gaus(x, [0], [1], [2])", -7.5, 7.5);
+  tf1               -> SetParameters(res[0], res[1], res[2]); 
 
   //Pass/Fail
   /*
@@ -172,10 +174,10 @@ 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);
-  f1->SetLineWidth(2);
-  f1->SetLineColor(kRed);
+  tf1->SetLineWidth(2);
+  tf1->SetLineColor(kRed);
   hdE_rel->DrawClone();
-  f1->Draw("SAME");
+  tf1->Draw("SAME");
   cdE_rel->SaveAs("results/emcal_barrel_pi0_dE_rel.png");
   cdE_rel->SaveAs("results/emcal_barrel_pi0_dE_rel.pdf");