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#include "TH1D.h"
#include "TH2D.h"
#include "THStack.h"
#include "TGraph.h"
#include "TTree.h"
#include "TChain.h"
#include "TFile.h"
#include "TCanvas.h"
#include "TROOT.h"
#include "TStyle.h"
#include "TColor.h"
#include "TLorentzVector.h"
#include "TRandom3.h"
#include "TLegend.h"
#include "RooDataHist.h"
#include "RooRealVar.h"
#include "RooPlot.h"
#include "RooGaussian.h"
#include "RooExponential.h"
#include "RooRealConstant.h"
#include "RooAddPdf.h"
#include "RooFitResult.h"
#include "RooProduct.h"
#include "RooCrystalBall.h"
#include "RooBreitWigner.h"
#include "RooArgSet.h"
#include "RooFFTConvPdf.h"
#include "RooNovosibirsk.h"
#include <string>
#include <iostream>
#include <cmath>
const int nBins = 70;
const Double_t MASS_HIST_MIN = 5100.;const Double_t MASS_HIST_MAX = 6000.;const Double_t MASS_HIST_FIT_MIN = 5100.;const Double_t MASS_HIST_FIT_MAX = 6000.;
const Double_t K_MASS = 493.677;const Double_t PSI2S_MASS = 3686.093;const Double_t JPSI_MASS = 3096.900;const Double_t KSTAR_MASS = 891.760;
void CreateRooFitAndDraw(TH1D *hist, const char *name);
const char *TITLE = "SpruceRD_BuToHpMuMu (#pi^{+} #rightarrow K^{+}, w/o excl Hlt2 decision cut)";const char *FILE_NAME = "SpruceRD_BuToHpMuMu_Pip2Kp_wohlt2cut";const char *MASS_LITERAL = "m(#pi^{+}_{(#rightarrow K^{+})}#mu^{+}#mu^{-})";
struct Hlt1Decision{ std::string name; int index; int flag; Bool_t value;
std::string GetName() const { return TString::Format("Hlt1%sDecision", name.c_str()).Data(); }
Bool_t *GetValuePointer() { return &value; }};
const int FLAG_TrackMVA = 0b0000100000000000;const int FLAG_TwoTrackMVA = 0b0001000000000000;std::vector<Hlt1Decision> Hlt1Decisions{ Hlt1Decision{"DiMuonHighMass", 1, 0b0000000000000001}, // 0001
Hlt1Decision{"DiMuonLowMass", 2, 0b0000000000000010}, // 0002
Hlt1Decision{"DiMuonNoIP", 3, 0b0000000000000100}, // 0004
Hlt1Decision{"DiMuonSoft", 4, 0b0000000000001000}, // 0008
Hlt1Decision{"DisplacedLeptons", 5, 0b0000000000010000}, // 0016
Hlt1Decision{"LowPtDiMuon", 6, 0b0000000000100000}, // 0032
Hlt1Decision{"LowPtMuon", 7, 0b0000000001000000}, // 0064
Hlt1Decision{"OneMuonTrackLine", 8, 0b0000000010000000}, // 0128
Hlt1Decision{"SingleHighEt", 9, 0b0000000100000000}, // 0256
Hlt1Decision{"SingleHighPtMuon", 10, 0b0000001000000000}, // 0512
Hlt1Decision{"TrackMVA", 11, FLAG_TrackMVA}, // 1024
Hlt1Decision{"TrackMuonMVA", 12, 0b0000100000000000}, // 2048
Hlt1Decision{"TwoTrackMVA", 13, FLAG_TwoTrackMVA}, // 4096
};// 0b0001000000000000
// 0b0001000000110111
void ConnectHlt1Decisions(TChain *chain){ for (auto &var : Hlt1Decisions) { chain->SetBranchAddress(var.GetName().c_str(), var.GetValuePointer()); }}
int CombineHlt1DecisionFlags(){ int result = 0; for (const auto &var : Hlt1Decisions) { if (var.value) { result = result | var.flag; } }
return result;}
int analysis_fullstream_bu2hpmumu(){ TChain *data_chain = new TChain("BuToHpMuMu/DecayTree"); data_chain->Add("/auto/data/pfeiffer/inclusive_detached_dilepton/data_samples/spruce_magdown_2023_v0r1_tuple_90000000_2023_v0r0p6288631.root"); data_chain->Add("/auto/data/pfeiffer/inclusive_detached_dilepton/data_samples/spruce_magdown_2023_v0_tuple_90000000_v0r0p6288631.root");
Float_t B_BPVFDCHI2, B_BPVIPCHI2, L1_BPVIPCHI2, L2_BPVIPCHI2, L1_PT, L2_PT, Jpsi_BPVFDCHI2, Hp_PT, Hp_BPVIPCHI2, Hp_P;
Double_t L1_PID_MU, L2_PID_MU, B_CHI2VXNDOF, Jpsi_MAXDOCACHI2, Jpsi_CHI2DOF, Hp_PID_K, Jpsi_M, B_M;
Bool_t L1_ISMUON, L2_ISMUON, Hlt2RD_BuToKpMuMuDecision, Hlt2_InclDetDiMuon_4BodyDecision, Hlt2_InclDetDiMuon_3BodyDecision, Hlt2_InclDetDiMuonDecision, Hlt1TrackMVADecision, Hlt1TwoTrackMVADecision;
data_chain->SetBranchAddress("B_M", &B_M);
data_chain->SetBranchAddress("B_BPVFDCHI2", &B_BPVFDCHI2);
data_chain->SetBranchAddress("B_BPVIPCHI2", &B_BPVIPCHI2);
data_chain->SetBranchAddress("L1_BPVIPCHI2", &L1_BPVIPCHI2); data_chain->SetBranchAddress("L2_BPVIPCHI2", &L2_BPVIPCHI2); data_chain->SetBranchAddress("L1_PID_MU", &L1_PID_MU); data_chain->SetBranchAddress("L2_PID_MU", &L2_PID_MU); data_chain->SetBranchAddress("L1_ISMUON", &L1_ISMUON); data_chain->SetBranchAddress("L2_ISMUON", &L2_ISMUON); data_chain->SetBranchAddress("L1_PT", &L1_PT); data_chain->SetBranchAddress("L2_PT", &L2_PT);
data_chain->SetBranchAddress("B_CHI2VXNDOF", &B_CHI2VXNDOF); data_chain->SetBranchAddress("Jpsi_MAXDOCACHI2", &Jpsi_MAXDOCACHI2); data_chain->SetBranchAddress("Jpsi_CHI2DOF", &Jpsi_CHI2DOF);
data_chain->SetBranchAddress("Hp_PT", &Hp_PT); data_chain->SetBranchAddress("Hp_BPVIPCHI2", &Hp_BPVIPCHI2); data_chain->SetBranchAddress("Hp_P", &Hp_P); data_chain->SetBranchAddress("Hp_PID_K", &Hp_PID_K);
data_chain->SetBranchAddress("Jpsi_BPVFDCHI2", &Jpsi_BPVFDCHI2); data_chain->SetBranchAddress("Jpsi_M", &Jpsi_M);
data_chain->SetBranchAddress("Hlt2RD_BuToKpMuMuDecision", &Hlt2RD_BuToKpMuMuDecision); data_chain->SetBranchAddress("Hlt2_InclDetDiMuon_4BodyDecision", &Hlt2_InclDetDiMuon_4BodyDecision); data_chain->SetBranchAddress("Hlt2_InclDetDiMuon_3BodyDecision", &Hlt2_InclDetDiMuon_3BodyDecision); data_chain->SetBranchAddress("Hlt2_InclDetDiMuonDecision", &Hlt2_InclDetDiMuonDecision); // data_chain->SetBranchAddress("Hlt1TrackMVADecision", &Hlt1TrackMVADecision);
// data_chain->SetBranchAddress("Hlt1TwoTrackMVADecision", &Hlt1TwoTrackMVADecision);
Float_t L1_PX, L1_PY, L1_PZ, L1_ENERGY, L2_PX, L2_PY, L2_PZ, L2_ENERGY, Hp_PX, Hp_PY, Hp_PZ, Hp_ENERGY; data_chain->SetBranchAddress("L1_PX", &L1_PX); data_chain->SetBranchAddress("L1_PY", &L1_PY); data_chain->SetBranchAddress("L1_PZ", &L1_PZ); data_chain->SetBranchAddress("L1_ENERGY", &L1_ENERGY); data_chain->SetBranchAddress("L2_PX", &L2_PX); data_chain->SetBranchAddress("L2_PY", &L2_PY); data_chain->SetBranchAddress("L2_PZ", &L2_PZ); data_chain->SetBranchAddress("L2_ENERGY", &L2_ENERGY); data_chain->SetBranchAddress("Hp_PX", &Hp_PX); data_chain->SetBranchAddress("Hp_PY", &Hp_PY); data_chain->SetBranchAddress("Hp_PZ", &Hp_PZ); data_chain->SetBranchAddress("Hp_ENERGY", &Hp_ENERGY);
ConnectHlt1Decisions(data_chain);
TH1D *h1_B_M_jpsi = new TH1D("h1_B_M_jpsi", "B Mass, J/#psi Mode", nBins, MASS_HIST_MIN, MASS_HIST_MAX); TH1D *h1_B_M_psi2s = new TH1D("h1_B_M_psi2s", "B Mass, #psi(2S) Mode", nBins, MASS_HIST_MIN, MASS_HIST_MAX); TH2D *h2_Hlt1_flags_B_Mass = new TH2D("h2_Hlt1_flags_B_Mass", "Hlt1 Decision vs B Mass", 50, 5100, 5400, 13, 1., 14.); h2_Hlt1_flags_B_Mass->SetCanExtend(TH1::kYaxis);
for (const auto &var : Hlt1Decisions) { h2_Hlt1_flags_B_Mass->Fill(0., var.name.c_str(), 0.); }
unsigned int entries = data_chain->GetEntries(); unsigned int fitting_entries = 0; for (unsigned int i = 0; i < entries; i++) { data_chain->GetEntry(i);
TVector3 K_momentum(Hp_PX, Hp_PY, Hp_PZ); double K_energy = TMath::Sqrt(TMath::Sq(K_MASS) + K_momentum.Mag2()); TLorentzVector K_4v(K_momentum, K_energy); TLorentzVector l1_4v(L1_PX, L1_PY, L1_PZ, L1_ENERGY); TLorentzVector l2_4v(L2_PX, L2_PY, L2_PZ, L2_ENERGY); Double_t reconstructed_B_Mass = (K_4v + l1_4v + l2_4v).M();
int combinedFlags = CombineHlt1DecisionFlags(); bool trackMVADec = (((combinedFlags & FLAG_TrackMVA) == FLAG_TrackMVA) | ((combinedFlags & FLAG_TwoTrackMVA) == FLAG_TwoTrackMVA)); if (TMath::Abs(Jpsi_M - JPSI_MASS) < 100 && trackMVADec) { for (const auto &var : Hlt1Decisions) { if (var.value) { h2_Hlt1_flags_B_Mass->Fill(reconstructed_B_Mass, var.name.c_str(), 1); } } } // std::cout << "HLT1 Decision Flags: " << combinedFlags << std::endl;
if (trackMVADec) { if (TMath::Abs(Jpsi_M - JPSI_MASS) < 100) { h1_B_M_jpsi->Fill(reconstructed_B_Mass); } else if (TMath::Abs(Jpsi_M - PSI2S_MASS) < 100) { h1_B_M_psi2s->Fill(reconstructed_B_Mass); } }
// if ((((B_BPVFDCHI2 > 36) & (B_CHI2VXNDOF < 16) & (B_BPVIPCHI2 < 25) & (Jpsi_MAXDOCACHI2 < 36) & (L1_BPVIPCHI2 > 9) & (L2_BPVIPCHI2 > 9) & (L1_PID_MU > -3) & (L2_PID_MU > -3) & (L1_ISMUON == 1) & (L2_ISMUON == 1) & (L1_PT > 350) & (L2_PT > 350) & (Jpsi_CHI2DOF < 9) & (Jpsi_BPVFDCHI2 > 16) & (Jpsi_M < 5500) & (Hp_PT > 400) & (Hp_BPVIPCHI2 > 6) & (Hp_PT > 400) & (Hp_BPVIPCHI2 > 6) & (Hp_P > 2000) & (Hp_PID_K > -4)) /*& (Hlt2RD_BuToKpMuMuDecision == 1)*/ & (((Hlt2_InclDetDiMuon_4BodyDecision == 1) | (Hlt2_InclDetDiMuon_3BodyDecision == 1) | (Hlt2_InclDetDiMuonDecision == 1)))))
// {
// if ((TMath::Abs(Jpsi_M - 3096.9) < 100) & ((Hlt1TrackMVADecision == 1) | (Hlt1TwoTrackMVADecision == 1)))
// {
// h1_B_M->Fill(reconstructed_B_Mass);
// if (MASS_HIST_FIT_MIN <= reconstructed_B_Mass && reconstructed_B_Mass <= MASS_HIST_FIT_MAX)
// {
// fitting_entries++;
// }
// }
// }
if ((i + 1) % 10000 == 0 || i + 1 == entries) { std::cout << "[" << FILE_NAME << "] Processed event: " << i + 1 << " (" << TString::Format("%.2f", ((double)(i + 1) / (double)entries) * 100.) << "%)" << std::endl; } }
TCanvas *c1 = new TCanvas("c1", "c1", 0, 0, 800, 600); h1_B_M_jpsi->Draw(); c1->Draw(); c1->SaveAs(TString::Format("images/root_hist_%s_%s_bmass.pdf", FILE_NAME, "jpsi").Data());
TCanvas *c2 = new TCanvas("c2", "c2", 0, 0, 800, 600); h1_B_M_psi2s->Draw(); c2->Draw(); c2->SaveAs(TString::Format("images/root_hist_%s_%s_bmass.pdf", FILE_NAME, "psi2s").Data());
TCanvas *c3 = new TCanvas("c3", "c3", 0, 0, 800, 600); c3->SetLeftMargin(0.20); h2_Hlt1_flags_B_Mass->SetStats(0); h2_Hlt1_flags_B_Mass->Draw("COLZ"); c3->Draw();
// CreateRooFitAndDraw(h1_B_M_jpsi, "jpsi");
// CreateRooFitAndDraw(h1_B_M_psi2s, "psi2s");
return 0;}
void CreateRooFitAndDraw(TH1D *hist, const char *name){ auto suffix = [name](const char *text) { return TString::Format("%s_%s", text, name); };
std::cout << " ###### " << suffix("AABB") << std::endl;
RooRealVar roo_var_mass(suffix("var_mass"), "B Mass Variable", MASS_HIST_FIT_MIN, MASS_HIST_FIT_MAX); roo_var_mass.setRange("fitting_range", MASS_HIST_FIT_MIN, MASS_HIST_FIT_MAX);
TString hist_name = suffix("roohist_B_M"); RooDataHist roohist_B_M(hist_name, "B Mass Histogram", roo_var_mass, RooFit::Import(*hist));
RooPlot *roo_frame_mass = roo_var_mass.frame(RooFit::Title(TITLE)); roohist_B_M.plotOn(roo_frame_mass, RooFit::Binning(nBins), RooFit::Name(hist_name)); roo_frame_mass->GetXaxis()->SetTitle(MASS_LITERAL);
// Crystal Ball for Signal
RooRealVar var_mass_x0(suffix("var_mass_x0"), "#mu", 5278., 5170., 5500.); RooRealVar var_mass_sigmaLR(suffix("var_mass_sigmaLR"), "#sigma_{LR}", 16., 5., 40.);
// Same Variables for Left and Right Tail
// RooRealVar var_mass_alphaL("var_mass_alphaL", "#alpha_{L}", 2., 0., 4.);
// RooRealVar var_mass_nL("var_mass_nL", "n_{L}", 5., 0., 15.);
// RooRealVar var_mass_alphaR("var_mass_alphaR", "#alpha_{R}", 2., 0., 4.);
// RooRealVar var_mass_nR("var_mass_nR", "n_{R}", 5., 0., 15.);
auto var_mass_alphaL = RooRealConstant::value(1.894); auto var_mass_nL = RooRealConstant::value(1.120); auto var_mass_alphaR = RooRealConstant::value(2.446); auto var_mass_nR = RooRealConstant::value(1.146);
RooCrystalBall sig_cb(suffix("sig_cb"), "Signal Crystal Ball", roo_var_mass, var_mass_x0, var_mass_sigmaLR, var_mass_alphaL, var_mass_nL, var_mass_alphaR, var_mass_nR);
// Exponential for Background
RooRealVar var_mass_bkg_c(suffix("var_mass_bkg_c"), "#lambda", -0.0014, -0.004, -0.000); RooExponential bkg_exp(suffix("bkg_exp"), "Exp Background", roo_var_mass, var_mass_bkg_c);
RooRealVar var_mass_nsig(suffix("nsig"), "Mass N Signal", 0., hist->GetEntries()); RooRealVar var_mass_nbkg(suffix("nbkg"), "Mass N Background", 0., hist->GetEntries());
TString pdf_name = suffix("sigplusbkg"); RooAddPdf sigplusbkg(pdf_name, "Sig and Bkg PDF", RooArgList(sig_cb, bkg_exp), RooArgList(var_mass_nsig, var_mass_nbkg));
RooFitResult *fitres = sigplusbkg.fitTo(roohist_B_M, RooFit::Save(), RooFit::PrintLevel(1), RooFit::Range("fitting_range"));
// sigplusbkg.plotOn(roo_frame_mass, RooFit::VisualizeError(*fitres, 1), RooFit::FillColor(kOrange + 1), RooFit::FillStyle(3144));
sigplusbkg.plotOn(roo_frame_mass, RooFit::LineColor(kRed), RooFit::LineStyle(kSolid), RooFit::Range("fitting_range"), RooFit::Name(pdf_name)); sigplusbkg.plotOn(roo_frame_mass, RooFit::Components(RooArgSet(bkg_exp)), RooFit::LineColor(kBlue - 7), RooFit::LineStyle(kDashed), RooFit::Range("fitting_range"), RooFit::Name("bkg_exp")); sigplusbkg.plotOn(roo_frame_mass, RooFit::Components(RooArgSet(sig_cb)), RooFit::LineColor(kRed - 7), RooFit::LineStyle(kDashed), RooFit::Range("fitting_range"), RooFit::Name("sig_cb"));
RooPlot *roo_frame_pull = roo_var_mass.frame(RooFit::Title("Pull Distribution")); roo_frame_pull->addPlotable(roo_frame_mass->pullHist(hist_name, pdf_name), "P");
TCanvas *c = new TCanvas(suffix("roofit_c"), "roofit_c", 0, 0, 800, 600);
auto *p2 = new TPad(suffix("p2"), "Pull", 0., 0., 1., 0.3); p2->Draw(); p2->SetTopMargin(0.001); p2->SetBottomMargin(0.3); p2->SetGrid();
auto *p1 = new TPad(suffix("p1"), "Fit", 0., 0.32, 1., 1.); p1->Draw(); p1->SetBottomMargin(0.001); p1->cd();
roo_frame_mass->Draw();
TLegend *leg1 = new TLegend(0.50, 0.50, 0.87, 0.89); leg1->SetFillColor(kWhite); leg1->SetLineColor(kBlack);
leg1->AddEntry(roo_frame_mass->findObject(pdf_name), "Signal + Background", "LP"); leg1->AddEntry(roo_frame_mass->findObject("sig_cb"), "Signal", "LP"); leg1->AddEntry(roo_frame_mass->findObject("bkg_exp"), "Background", "LP"); leg1->AddEntry((TObject *)0, "", ""); leg1->AddEntry((TObject *)0, TString::Format("%s = %.3f #pm %.3f", var_mass_x0.getTitle().Data(), var_mass_x0.getVal(), var_mass_x0.getError()).Data(), ""); leg1->AddEntry((TObject *)0, TString::Format("%s = %.3f #pm %.3f", var_mass_sigmaLR.getTitle().Data(), var_mass_sigmaLR.getVal(), var_mass_sigmaLR.getError()).Data(), ""); leg1->AddEntry((TObject *)0, TString::Format("%s = %.6f #pm %.6f", var_mass_bkg_c.getTitle().Data(), var_mass_bkg_c.getVal(), var_mass_bkg_c.getError()).Data(), ""); leg1->AddEntry((TObject *)0, TString::Format("%s = %.3f #pm %.3f", "S", var_mass_nsig.getVal(), var_mass_nsig.getError()).Data(), ""); leg1->AddEntry((TObject *)0, TString::Format("%s = %.3f #pm %.3f", "B", var_mass_nbkg.getVal(), var_mass_nbkg.getError()).Data(), "");
leg1->AddEntry((TObject *)0, TString::Format("Entries: %.1f", var_mass_nsig.getVal() + var_mass_nbkg.getVal()), "");
leg1->Draw();
p2->cd();
roo_frame_pull->Draw();
c->Draw(); c->SaveAs(TString::Format("images/data/roofit_hist_%s_bmass.pdf", suffix(FILE_NAME).Data()).Data());}
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