HadronConst.cxx

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void HadronConst()
{
    TFile *f = new TFile("hadron.root","recreate");
    TTree* tree = new TTree("ggscalib","ggscalib");
    //double new_v[5]={9.99882e-02,9.33508e-04,8.46946e-03,1.75101e+00,9.58826e+00}; //2011 data under 662
    // double new_v[5]={2.02648e-02,-1.49155e-03,1.09636e-02,1.75283e+00,2.19365e+00}; //2010 data under 662
    double new_v[5]={1.25803e-02, -5.57378e-04, 1.07745e-02, 1.73587e+00, 1.14291e+00}; //2010 J/psi data under 662
    int new_v2=5;
     
    TBranch* branch1=tree->Branch("hadron", new_v, "hadron[5]/D");
    TBranch* branch2=tree->Branch("hadronNo", &new_v2, "hadronNo/I");
    tree->Fill();
    tree->Write();
    f->Close();
}