Resolve "pi0 resolution for ECal barrel"

Closes #19 (closed)

benchmarks/barrel_ecal/scripts/emcal_barrel_pions_analysis.cxx

@@ -56,7 +56,7 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   ROOT::RDataFrame d0("events", input_fname);
 
   // Sampling Fraction
-  double samp_frac = 1.0;
+  double samp_frac = 0.0136;
 
   // Thrown Energy [GeV]
   auto Ethr = [](std::vector<dd4pod::Geant4ParticleData> const& input) {
@@ -132,6 +132,7 @@ void emcal_barrel_pions_analysis(const char* input_fname = "sim_output/sim_emcal
   auto hpid   = d1.Histo1D({"hpid",   "PID; PID; Count",                                   100,  -220,   220}, "pid");
 
   // Set sampling Fraction, ideally this will be taken from a json file 
+  cout << "The sampling fraction mean is " << samp_frac << endl;
   samp_frac = hfsam -> GetMean();
   cout << "The sampling fraction mean is " << samp_frac << endl;