plot_MC_eff.cxx

int plot_MC_eff(){
  
  double en[] = { 80.997, 302.854, 356.01, 376.394, 383.9, 1173, 1332, 4400,3000,1332,600,400,200,100,1000,2000,5000,10000};
  double eff[] = { 0.216, 0.1579, 0.1469, 0.1460, 0.1979, 0.0651, 0.0569, 0.049,0.0666,0.11349,0.17481,0.21658,0.3067,0.35915, 0.1333,0.0827,0.044, 0.02227};
  TCanvas *c = new TCanvas();
  TGraph *g = new TGraph(17,en,eff);
  g->Draw("A*");
  gPad->SetLogy(1);
  gPad->SetLogx(1);


}