File indexing completed on 2024-04-06 11:56:38
0001 #include <TFile.h>
0002 #include <TTree.h>
0003 #include <TPad.h>
0004 #include <TH1F.h>
0005 #include <iostream>
0006
0007 bool isValidFile(const TString& fileName) {
0008 TFile* file = TFile::Open(fileName, "read");
0009 if (!file || file->IsZombie()) {
0010 std::cout << "Error: Invalid file or file is a zombie.\n";
0011 return false;
0012 }
0013 return true;
0014 }
0015
0016 void printParameters(const TString& fileName) {
0017 if (!isValidFile(fileName)) {
0018 exit(EXIT_FAILURE);
0019 }
0020
0021 TFile* file = TFile::Open(fileName, "read");
0022 TTree* tree = static_cast<TTree*>(file->Get("zMuMuMassConstraintParameterFinder/di_muon_from_Z"));
0023 tree->Draw("di_muon_mass>>htemp", "in_mass_window");
0024 TH1F* htemp = static_cast<TH1F*>(gPad->GetPrimitive("htemp"));
0025
0026 std::cout << "\n========================================\n";
0027 std::cout << "'Z -> mu mu' mass constraint parameters:\n";
0028 std::cout << "----------------------------------------\n";
0029 std::cout << " PrimaryMass = " << htemp->GetMean() << "\n";
0030 std::cout << " PrimaryWidth = " << htemp->GetRMS() << "\n";
0031 std::cout << "========================================\n";
0032
0033 exit(EXIT_SUCCESS);
0034 }
