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184 lines
6.1 KiB
184 lines
6.1 KiB
#include "TH1D.h"
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#include "TH2D.h"
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#include "THStack.h"
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#include "TGraph.h"
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#include "TTree.h"
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#include "TChain.h"
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#include "TFile.h"
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#include "TCanvas.h"
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#include "TROOT.h"
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#include "TStyle.h"
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#include "TColor.h"
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#include "TLorentzVector.h"
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#include "TRandom3.h"
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#include "TLorentzVector.h"
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#include "RooDataHist.h"
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#include "RooRealVar.h"
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#include "RooPlot.h"
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#include "RooGaussian.h"
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#include "RooExponential.h"
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#include "RooRealConstant.h"
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#include "RooAddPdf.h"
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#include "RooFitResult.h"
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#include "RooProduct.h"
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#include "RooCrystalBall.h"
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#include "RooBreitWigner.h"
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#include "RooArgSet.h"
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#include "RooFFTConvPdf.h"
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#include "RooNovosibirsk.h"
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#include <string>
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#include <iostream>
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#include <cmath>
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#include <filesystem>
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const int nBins = 70;
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const Double_t MASS_HIST_MIN = 5100.;
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const Double_t MASS_HIST_MAX = 6000.;
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const Double_t MASS_HIST_FIT_MIN = 5100.;
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const Double_t MASS_HIST_FIT_MAX = 6000.;
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const Double_t K_MASS = 493.677;
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int simulation()
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{
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const char *name = "BuToKpMuMu_Fullstream";
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const bool use_hyp_replace = true;
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const char *b_name = "B";
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const bool has_H_minus = false;
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auto quickformat_name = [name](const char * format) {
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return TString::Format(format, name);
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};
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TChain *data_chain = new TChain("B0ToHpHmMuMu_noPID/DecayTree");
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data_chain->Add("/auto/data/pfeiffer/inclusive_detached_dilepton/MC/rd_btoxll_simulation_fullstream_v0r0p6671378_BuToKpMuMu_12143001_magdown.root");
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/*
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rd_btoxll_simulation_fullstream_v0r0p6671378_B0ToKpPimMuMu_11144002_magdown.root
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rd_btoxll_simulation_fullstream_v0r0p6671378_BuToKpMuMu_12143001_magdown.root
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rd_btoxll_simulation_turbo_v0r0p6657752_B0ToKpPimMuMu_11144002_magdown.root
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rd_btoxll_simulation_turbo_v0r0p6657752_BuToKpMuMu_12143001_magdown.root
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*/
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Int_t B_BKGCAT;
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data_chain->SetBranchAddress(TString::Format("%s_BKGCAT", b_name).Data(), &B_BKGCAT);
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Float_t L1_PX, L1_PY, L1_PZ, L1_ENERGY,
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L2_PX, L2_PY, L2_PZ, L2_ENERGY,
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Hp_PX, Hp_PY, Hp_PZ, Hp_ENERGY,
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Hm_PX, Hm_PY, Hm_PZ, Hm_ENERGY;
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Double_t B_M;
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if (use_hyp_replace)
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{
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data_chain->SetBranchAddress("L1_PX", &L1_PX);
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data_chain->SetBranchAddress("L1_PY", &L1_PY);
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data_chain->SetBranchAddress("L1_PZ", &L1_PZ);
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data_chain->SetBranchAddress("L1_ENERGY", &L1_ENERGY);
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data_chain->SetBranchAddress("L2_PX", &L2_PX);
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data_chain->SetBranchAddress("L2_PY", &L2_PY);
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data_chain->SetBranchAddress("L2_PZ", &L2_PZ);
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data_chain->SetBranchAddress("L2_ENERGY", &L2_ENERGY);
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data_chain->SetBranchAddress("Hp_PX", &Hp_PX);
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data_chain->SetBranchAddress("Hp_PY", &Hp_PY);
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data_chain->SetBranchAddress("Hp_PZ", &Hp_PZ);
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data_chain->SetBranchAddress("Hp_ENERGY", &Hp_ENERGY);
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if (has_H_minus) {
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data_chain->SetBranchAddress("Hm_PX", &Hp_PX);
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data_chain->SetBranchAddress("Hm_PY", &Hp_PY);
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data_chain->SetBranchAddress("Hm_PZ", &Hp_PZ);
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data_chain->SetBranchAddress("Hm_ENERGY", &Hp_ENERGY);
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}
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}
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else
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{
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data_chain->SetBranchAddress(TString::Format("%s_M", b_name).Data(), &B_M);
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}
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TH1D *h1_B_M = new TH1D("h1_B_M", "B Mass", nBins, MASS_HIST_MIN, MASS_HIST_MAX);
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TH1D *h1_B_M_bkgcat = new TH1D("h1_B_M_bkgcat", "B Mass with BKGCAT <= 10", nBins, MASS_HIST_MIN, MASS_HIST_MAX);
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TH1I *h1_B_BKGCAT = new TH1I("h1_B_BKGCAT", "B Background Category", nBins, 0, 120);
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TH2D *h2_B_M_vs_B_BKGCAT = new TH2D("h2_B_M_vs_B_BKGCAT", "B Mass vs Background Category", nBins, MASS_HIST_MIN, MASS_HIST_MAX, nBins, 0, 120);
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unsigned int entries = data_chain->GetEntries();
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for (size_t i = 0; i < entries; i++)
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{
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data_chain->GetEntry(i);
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// std::cout << B_BKGCAT << std::endl;
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Double_t reconstructed_B_Mass = 0;
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if (use_hyp_replace)
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{
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TVector3 K_momentum(Hp_PX, Hp_PY, Hp_PZ);
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double K_energy = TMath::Sqrt(TMath::Sq(K_MASS) + K_momentum.Mag2());
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TLorentzVector K_4v(K_momentum, K_energy);
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TLorentzVector l1_4v(L1_PX, L1_PY, L1_PZ, L1_ENERGY);
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TLorentzVector l2_4v(L2_PX, L2_PY, L2_PZ, L2_ENERGY);
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TLorentzVector sum = K_4v + l1_4v + l2_4v;
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if (has_H_minus) {
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TLorentzVector Hm_4v(Hm_PX, Hm_PY, Hm_PZ, Hm_ENERGY);
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sum += Hm_4v;
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}
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reconstructed_B_Mass = sum.M();
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}
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else
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{
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reconstructed_B_Mass = B_M;
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}
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if (B_BKGCAT <= 10)
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{
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h1_B_M_bkgcat->Fill(reconstructed_B_Mass);
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}
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h1_B_M->Fill(reconstructed_B_Mass);
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h1_B_BKGCAT->Fill(B_BKGCAT);
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h2_B_M_vs_B_BKGCAT->Fill(reconstructed_B_Mass, B_BKGCAT);
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if (i % 10000 == 0)
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{
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std::cout << "["
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<< name
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<< "] Processed event: " << i << " (" << TString::Format("%.2f", ((double)i / (double)entries) * 100.) << "%)" << std::endl;
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}
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}
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h1_B_M->SetLineColor(kBlue);
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h1_B_M_bkgcat->SetLineColor(kMagenta + 2);
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h1_B_M_bkgcat->SetFillColor(kMagenta + 2);
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h1_B_M_bkgcat->SetFillStyle(3244);
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h1_B_BKGCAT->SetLineColor(kBlue);
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h1_B_BKGCAT->SetFillColor(kBlue);
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h1_B_BKGCAT->SetFillStyle(3351);
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std::filesystem::create_directory(TString::Format("images/sim/%s", name).Data());
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TCanvas *c1 = new TCanvas("c1", "c1", 0, 0, 800, 600);
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h1_B_M->SetStats(0);
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h1_B_M_bkgcat->SetStats(0);
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h1_B_M->Draw();
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h1_B_M_bkgcat->Draw("SAME");
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c1->BuildLegend(0.58, 0.65, 0.85, 0.87);
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c1->Draw();
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c1->SaveAs(quickformat_name("images/sim/%s/h1_B_M.pdf"));
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TCanvas *c2 = new TCanvas("c2", "c2", 0, 0, 800, 600);
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h1_B_BKGCAT->SetStats(0);
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h1_B_BKGCAT->Draw();
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c2->BuildLegend(0.58, 0.77, 0.85, 0.87);
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c2->Draw();
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c2->SaveAs(quickformat_name("images/sim/%s/h1_B_BKGCAT.pdf"));
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TCanvas *c3 = new TCanvas("c3", "c3", 0, 0, 800, 600);
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h2_B_M_vs_B_BKGCAT->SetStats(0);
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h2_B_M_vs_B_BKGCAT->Draw("COLZ");
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c3->Draw();
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c3->SaveAs(quickformat_name("images/sim/%s/h2_B_M_vs_B_BKGCAT.pdf"));
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return 0;
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}
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