Draft: Resolve "Add energy scan for Barrel Ecal"

Closes #45 (closed)

benchmarks/B0/scripts/gen_far_forward_protons.cxx

@@ -53,12 +53,12 @@ void gen_far_forward_protons(int n_events = 100,
     //std::cout << std::sqrt(px*px + py*py + pz*pz) - p << " is zero? \n";
 
     // type 1 is final state
-    // pdgid 11 - proton 0.510 MeV/c^2
+    // pdgid 11 - proton 938.272 MeV/c^2
     GenParticlePtr p3 = std::make_shared<GenParticle>(
         FourVector(
             px, py, pz,
-            sqrt(p*p + (0.000511 * 0.000511))),
-        11, 1);
+            sqrt(p*p + (0.938272 * 0.938272))),
+        2212, 1);
 
     GenVertexPtr v1 = std::make_shared<GenVertex>();
     v1->add_particle_in(p1);