gen_sigma_decay.cxx: avoid spamming stdout

benchmarks/zdc_sigma/analysis/gen_sigma_decay.cxx

@@ -291,11 +291,11 @@ void gen_sigma_decay(int n_events = 100000, UInt_t seed = 0, char* out_fname = "
     TVector3 extrap_gamma2=lambda_decay_position+gamma2_lab.Vect()*((zdc_z-pbeam_dir.Dot(lambda_decay_position))/(pbeam_dir.Dot(gamma2_lab.Vect())));
     if (extrap_neutron.Angle(pbeam_dir)<0.004 && extrap_gamma1.Angle(pbeam_dir)<0.004 && extrap_gamma2.Angle(pbeam_dir)<0.004 && extrap_gamma.Angle(pbeam_dir)<0.004 && lambda_decay_position.Dot(pbeam_dir)<zdc_z){
       hepmc_output.write_event(evt);
+      if (accepted_events % 1000 == 0) {
+        std::cout << "Event: " << accepted_events << std::endl;
+      }
       accepted_events ++;
     }
-    if (accepted_events % 1000 == 0) {
-      std::cout << "Event: " << accepted_events << std::endl;
-    }
     evt.clear();
   }
   hepmc_output.close();