Make Scatter Plot, TGraph is better than TH2F

TGraph *gr1 = new TGraph(10);
   gr1->SetFillColor(6);
   gr1->SetFillStyle(3005);
   gr1->SetLineColor(6);
   gr1->SetLineWidth(603);
   gr1->SetPoint(0,140,0.5);
   gr1->SetPoint(1,130,2.9);
   gr1->SetPoint(2,124.677,3.83726);
   gr1->SetPoint(3,113.362,6.06903);
   gr1->SetPoint(4,108.513,8.00221);
   gr1->SetPoint(5,111.746,10.0272);
   gr1->SetPoint(6,119.828,12.8419);
   gr1->SetPoint(7,135.991,30.0872);
   gr1->SetPoint(8,140,40);
   gr1->SetPoint(9,135,60);
   gr1->Draw("C");
   TLatex *tex = new TLatex(140.841,37.9762,
      "#leftarrow t #rightarrow bH^{+}, H^{+} #rightarrow #tau#nu");
   tex->SetTextColor(6);
   tex->Draw();