update analysis scripts for minor dd4pod changes

benchmarks/barrel_ecal/scripts/emcal_barrel_energy_scan_analysis.cxx

@@ -57,7 +57,7 @@ std::tuple <double, double, double, double> extract_sampling_fraction_parameters
   // Thrown Energy [GeV]
   auto Ethr = [](std::vector<dd4pod::Geant4ParticleData> const& input) {
     auto p = input[2];
-    auto energy = TMath::Sqrt(p.psx * p.psx + p.psy * p.psy + p.psz * p.psz + p.mass * p.mass);
+    auto energy = TMath::Sqrt(p.ps.x * p.ps.x + p.ps.y * p.ps.y + p.ps.z * p.ps.z + p.mass * p.mass);
     return energy;
   };