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deriveDijetResponse.C
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deriveDijetResponse.C
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/*****************
* Macro for deriving the dijet relative and absolute response from data (or MC)
* Uses JME-13-004 as a reference - "A" and "B" formulae are defined there
* Kurt Jung, Raghav Kunnawalkam Elayavalli, December 2015
*******************/
// Updated Feb18 to run on individual or multiple HiForest files based on a filelist
// and produce output files which are combined by sumDijetResponse.C - Raghav
#include "TFile.h"
#include "TTree.h"
#include "TChain.h"
#include "TH1F.h"
#include <iostream>
#include <fstream>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "TLorentzVector.h"
using namespace std;
int findEtaBin(float eta, int nbins_eta, double* xbins_eta){
for(int i=0; i<nbins_eta; i++){
if(eta<xbins_eta[i+1]) return i;
}
return nbins_eta-1;
}
int findPtBin(float pt, int nbins_pt, double* xbins_pt){
for(int i=0; i<nbins_pt; i++){
if(pt<xbins_pt[i+1]) return i;
}
return nbins_pt-1;
}
TLorentzVector findMissEt(int nPFpart, int* pfId, float* pfPt, float* pfEta, float* pfPhi, int nref, float* pt_F, float* rawpt_F, float* eta_F, float* phi_F, float* m_F, float* eSum, float *phoSum){
TLorentzVector missEt(0,0,0,0);
for(int i=0; i<nPFpart; i++){
TLorentzVector pfp;
double pfMass=0;
if(pfId[i]==1 || pfId[i]==4){ pfMass = 0.1395702; }
pfp.SetPtEtaPhiM(pfPt[i],pfEta[i],pfPhi[i],pfMass);
pfp.SetPz(0.); //2d projection in x-y plane
missEt += pfp;
}
//include jet residuals
for(int i=0; i<nref; i++){
if(pt_F[i]>15){
TLorentzVector jtTmp(pt_F[i],eta_F[i],phi_F[i],m_F[i]);
if((eSum[i]+phoSum[i])/jtTmp.E() < 0.9){
TLorentzVector jt;
jt.SetPtEtaPhiM(pt_F[i]-rawpt_F[i],eta_F[i],phi_F[i],m_F[i]);
jt.SetPz(0.); //project to x-y plane
missEt += jt;
}
}
}
//rotate to get *missing* ET from residual ET
missEt*=-1;
missEt.SetE(0.); //really only care about the eT (not full E)
//cout << "missEt: Mag: " << missEt.Mag() << endl;
//missEt.Print();
return missEt;
}
void deriveDijetResponse(int startfile = 0,
int endfile = 1,
int radius = 4,
int isMC = 0,
std::string out = "test.root")
{
const double minJetPt = 40;
const int nbins_pt = 5;
double xbins_pt[nbins_pt+1] = {40,60,80,110,200,1000};
double xbins_eta[] = {-5.191, -4.716, -4.363, -4.013,
-3.664, -3.314, -2.964,
-2.650, -2.322, -2.043, -1.830,
-1.653, -1.479, -1.305,
-1.131, -0.957, -0.783, -0.609,
-0.435, -0.261, -0.087,
0.000,
0.087, 0.261, 0.435, 0.609,
0.783, 0.957, 1.131,
1.305, 1.479, 1.653, 1.830,
2.043, 2.322, 2.650,
2.964, 3.314, 3.664, 4.013,
4.363, 4.716, 5.191};
const int nbins_eta = sizeof(xbins_eta)/sizeof(double)-1;
// TH1F *hRelResponse[nbins_pt];
// TH1F *hMPFResponse[nbins_pt];
// TH1F *hAbsPhoResponse[nbins_pt];
// TH1F *hMPFAbsPhoResponse[nbins_pt];
TH1F *avgAHisto[nbins_pt][nbins_eta];
TH1F *avgBHisto[nbins_pt][nbins_eta];
TH1F *hAvgAbsPhoResponse[nbins_pt][nbins_eta];
for(int i=0; i<nbins_pt; i++){
// hRelResponse[i] = new TH1F(Form("hRelResponse_pt%d",i),"",nbins_eta,xbins_eta);
// hMPFResponse[i] = new TH1F(Form("hMPFResponse_pt%d",i),"",nbins_eta,xbins_eta);
// hAbsPhoResponse[i] = new TH1F(Form("hAbsPhoResponse_pt%d",i),"",nbins_eta,xbins_eta);
// hMPFAbsPhoResponse[i] = new TH1F(Form("hMPFAbsPhoResponse_pt%d",i),"",nbins_eta,xbins_eta);
for(int j=0; j<nbins_eta; j++){
avgAHisto[i][j] = new TH1F(Form("avgAHisto_pt%d_eta%d",i,j),"",50,-1,1);
avgBHisto[i][j] = new TH1F(Form("avgBHisto_pt%d_eta%d",i,j),"",50,-1,1);
hAvgAbsPhoResponse[i][j] = new TH1F(Form("hAvgAbsPhoResponse_pt%d_eta%d",i,j),"",75,-1,2);
}
}
double avgA[nbins_pt][nbins_eta];
TH1D *h_avgA[nbins_pt][nbins_eta];
int nEntries[nbins_pt][nbins_eta];
TH1D *h_nEntries[nbins_pt][nbins_eta];
double avgB[nbins_pt][nbins_eta];
TH1D *h_avgB[nbins_pt][nbins_eta];
int nEntriesB[nbins_pt][nbins_eta];
TH1D *h_nEntriesB[nbins_pt][nbins_eta];
double avgAbsPhoResponse[nbins_pt][nbins_eta];
TH1D *h_avgAbsPhoResponse[nbins_pt][nbins_eta];
int nEntriesAbs[nbins_pt][nbins_eta];
TH1D *h_nEntriesAbs[nbins_pt][nbins_eta];
for(int i=0; i<nbins_pt; i++){
for(int j=0; j<nbins_eta; j++){
avgA[i][j]=0;
nEntries[i][j]=0;
avgB[i][j]=0;
nEntriesB[i][j]=0;
avgAbsPhoResponse[i][j]=0;
nEntriesAbs[i][j]=0;
h_avgA[i][j]=new TH1D(Form("h_avgA_%d_%d",i,j),"",200, -2, 2);;
h_nEntries[i][j]=new TH1D(Form("h_nEntries_%d_%d",i,j),"",200, -2, 2);;
h_avgB[i][j]=new TH1D(Form("h_avgB_%d_%d",i,j),"",200, -2, 2);;
h_nEntriesB[i][j]=new TH1D(Form("h_nEntriesB_%d_%d",i,j),"",200, -2, 2);;
h_avgAbsPhoResponse[i][j]=new TH1D(Form("h_avgAbsPhoResponse_%d_%d",i,j),"",200, -2, 2);;
h_nEntriesAbs[i][j]=new TH1D(Form("h_nEntriesAbs_%d_%d",i,j),"",200, -2, 2);;
}
}
std::string infile_Forest;
if(isMC) infile_Forest = "pp_mc_forests.txt";
else infile_Forest = "pp_data_forests.txt";
std::ifstream instr_Forest(infile_Forest.c_str(),std::ifstream::in);
std::string filename_Forest;
for(int ifile = 0;ifile<startfile;ifile++){
instr_Forest>>filename_Forest;
}
int totalEntries = 0;
for(int ifile = startfile; ifile<endfile; ++ifile){
//signal(SIGINT,break);
instr_Forest>>filename_Forest;
cout << "opening file " << filename_Forest << endl;
TFile *fin = TFile::Open(filename_Forest.c_str());
TTree *jtTree = (TTree*)fin->Get(Form("ak%dPFJetAnalyzer/t",radius));
TTree *pfTree = (TTree*)fin->Get("pfcandAnalyzer/pfTree");
TTree *phoTree = (TTree*)fin->Get("ggHiNtuplizer/EventTree");
float pt_F[1000], eta_F[1000], phi_F[1000], rawpt_F[1000], m_F[1000], eSum[1000], phoSum[1000];
float pfPt[10000], pfEta[10000], pfPhi[10000];
int nref, nPFpart, pfId[10000], nPho;
vector<float> *phoEt=0, *phoEta=0, *phoPhi=0;
jtTree->SetBranchAddress("jtpt",pt_F);
jtTree->SetBranchAddress("jteta",eta_F);
jtTree->SetBranchAddress("jtphi",phi_F);
jtTree->SetBranchAddress("jtm",m_F);
jtTree->SetBranchAddress("rawpt",rawpt_F);
jtTree->SetBranchAddress("nref",&nref);
jtTree->SetBranchAddress("eSum",&eSum);
jtTree->SetBranchAddress("photonSum",&phoSum);
pfTree->SetBranchAddress("nPFpart",&nPFpart);
pfTree->SetBranchAddress("pfPt",pfPt);
pfTree->SetBranchAddress("pfEta",pfEta);
pfTree->SetBranchAddress("pfPhi",pfPhi);
pfTree->SetBranchAddress("pfId",pfId);
phoTree->SetBranchAddress("nPho",&nPho);
phoTree->SetBranchAddress("phoEt",&phoEt);
phoTree->SetBranchAddress("phoEta",&phoEta);
phoTree->SetBranchAddress("phoPhi",&phoPhi);
cout << "file entries: "<< jtTree->GetEntries() << endl;
for(int ientry=0; ientry<jtTree->GetEntries(); ientry++){
//for(int ientry=0; ientry<2000000; ientry++){
jtTree->GetEntry(ientry);
pfTree->GetEntry(ientry);
phoTree->GetEntry(ientry);
//signal(SIGINT,break);
totalEntries++;
if(nPFpart > 10000 || nref > 1000) cout << " warning! nPF: "<< nPFpart << " and njet: "<< nref << endl;
if(totalEntries && totalEntries%100000==0) cout << "entry: "<< ientry << endl;
//first look for photon balance (AN2013-179 / JME-13-004)
for(int i=0; i<nPho; i++){
if(phoEt->at(i)>30 && abs(phoEta->at(i))<1.4442){
//cout << "photon found, Et: " << phoEt->at(i) << endl;
for(int ijet=0; ijet<nref-1; ijet++){
if(pt_F[ijet]<minJetPt) continue;
if(abs(phoPhi->at(i)-phi_F[ijet])>2.95 && pt_F[ijet+1]/phoEt->at(i)<0.2){
//cout << "jet photon pair found" << endl;
TLorentzVector missEt = findMissEt(nPFpart, pfId, pfPt, pfEta, pfPhi, nref, pt_F, rawpt_F, eta_F, phi_F, m_F, eSum, phoSum);
int etaBin = findEtaBin(phoEta->at(i),nbins_eta,xbins_eta);
int ptBin = findPtBin(phoEt->at(i),nbins_pt,xbins_pt);
TLorentzVector phoVec(phoEt->at(i),phoEta->at(i),phoPhi->at(i),0.);
double num = missEt.Dot(phoVec);
avgAbsPhoResponse[ptBin][etaBin] += (1+(num/phoVec.Dot(phoVec)));
h_avgAbsPhoResponse[ptBin][etaBin]->Fill((1+(num/phoVec.Dot(phoVec))));
hAvgAbsPhoResponse[ptBin][etaBin]->Fill(1+(num/phoVec.Dot(phoVec)));
nEntriesAbs[ptBin][etaBin]++;
h_nEntriesAbs[ptBin][etaBin]->Fill(1);
}
}
}
}
//Doing standard Rrel method
if(nref>1){
int rJet, pJet;
if(abs(eta_F[0])<1.3 && abs(eta_F[1])<1.3){
pJet = rand()%2;
rJet = (pJet+1)%2;
}
else if(abs(eta_F[0])<1.3 && abs(eta_F[1])<5.){
pJet = 1; rJet = 0;
}
else if(abs(eta_F[1])<1.3 && abs(eta_F[0])<5.){
pJet = 0; rJet = 1;
}
else continue;
double avgPt = 0.5*(pt_F[rJet]+pt_F[pJet]);
if(nref>2){
if(pt_F[2]/avgPt > 0.2){
continue;
}
}
if(pt_F[rJet]<minJetPt) continue;
double dphi = abs(phi_F[rJet]-phi_F[pJet]);
if(dphi>(2*3.14159)) dphi-=(2*3.14159);
if(dphi < 2.7) continue;
int etaBin = findEtaBin(eta_F[pJet],nbins_eta,xbins_eta);
int ptBin = findPtBin(avgPt,nbins_pt,xbins_pt);
//if(etaBin>xbins_eta[nbins_eta] || ptBin>xbins_pt[nbins_pt]) cout << "OH NO! Bin Mismatch!" << endl;
avgA[ptBin][etaBin] += 0.5*(pt_F[pJet]-pt_F[rJet])/avgPt;
h_avgA[ptBin][etaBin]->Fill(0.5*(pt_F[pJet]-pt_F[rJet])/avgPt);
avgAHisto[ptBin][etaBin]->Fill(0.5*(pt_F[pJet]-pt_F[rJet])/avgPt);
nEntries[ptBin][etaBin]++;
h_nEntries[ptBin][etaBin]->Fill(1);
//Starting MPF Method
TLorentzVector missEt = findMissEt(nPFpart, pfId, pfPt, pfEta, pfPhi, nref, pt_F, rawpt_F, eta_F, phi_F, m_F, eSum, phoSum);
for(int i=0; i<nref; i++){
int etaBin = findEtaBin(eta_F[pJet],nbins_eta,xbins_eta);
int ptBin = findPtBin(avgPt,nbins_pt,xbins_pt);
TLorentzVector jetVec(pt_F[rJet],eta_F[rJet],phi_F[rJet],m_F[rJet]);
avgB[ptBin][etaBin] += (missEt.Dot(jetVec) / ( 2*avgPt * jetVec.Mag()));
h_avgB[ptBin][etaBin]->Fill((missEt.Dot(jetVec) / ( 2*avgPt * jetVec.Mag())));
avgBHisto[ptBin][etaBin]->Fill((missEt.Dot(jetVec) / ( 2*avgPt * jetVec.Mag())));
nEntriesB[ptBin][etaBin]++;
h_nEntriesB[ptBin][etaBin]->Fill(1);
}
}
} //close entries
fin->Close();
} //close file loop
// for(int i=0; i<nbins_pt; i++){
// for(int j=0; j<nbins_eta; j++){
// avgA[i][j] = avgA[i][j]/(double)nEntries[i][j];
// avgB[i][j] = avgB[i][j]/(double)nEntriesB[i][j];
// if(nEntries[i][j]) hRelResponse[i]->SetBinContent(j+1,(1+avgA[i][j])/(1-avgA[i][j]));
// //if(nEntries[i][j]) hRelResponse[i]->SetBinError(j+1,hRelResponse[i]->GetBinContent(j+1)*(1./sqrt(nEntries[i][j])));
// if(nEntries[i][j]) hRelResponse[i]->SetBinError(j+1,avgAHisto[i][j]->GetRMS()*(1./sqrt(nEntries[i][j])));
// else hRelResponse[i]->SetBinContent(j+1,0);
// if(nEntriesB[i][j]) hMPFResponse[i]->SetBinContent(j+1,(1+avgB[i][j])/(1-avgB[i][j]));
// //if(nEntriesB[i][j]) hMPFResponse[i]->SetBinError(j+1,hMPFResponse[i]->GetBinContent(j+1)*(1./sqrt(nEntriesB[i][j])));
// if(nEntriesB[i][j]) hMPFResponse[i]->SetBinError(j+1,avgBHisto[i][j]->GetRMS()*(1./sqrt(nEntriesB[i][j])));
// else hMPFResponse[i]->SetBinContent(j+1,0);
// if(nEntriesAbs[i][j]) hMPFAbsPhoResponse[i]->SetBinContent(j+1,avgAbsPhoResponse[i][j]/nEntriesAbs[i][j]);
// //if(nEntriesAbs[i][j]) hMPFAbsPhoResponse[i]->SetBinError(j+1,hMPFAbsPhoResponse[i]->GetBinContent(j+1)*(1./sqrt(nEntriesAbs[i][j])));
// if(nEntriesAbs[i][j]) hMPFAbsPhoResponse[i]->SetBinError(j+1,hAvgAbsPhoResponse[i][j]->GetRMS()*(1./sqrt(nEntriesAbs[i][j])));
// else hMPFAbsPhoResponse[i]->SetBinContent(j+1,0);
// int totEntriesA=0, totEntriesB=0, totEntriesAbs=0;
// for(int j=0; j<nbins_eta; j++){
// totEntriesA+=nEntries[i][j];
// totEntriesB+=nEntriesB[i][j];
// totEntriesAbs+=nEntriesAbs[i][j];
// }
// hRelResponse[i]->SetEntries(totEntriesA);
// hMPFResponse[i]->SetEntries(totEntriesB);
// hMPFAbsPhoResponse[i]->SetEntries(totEntriesAbs);
// }
// }
int color[5] = {1,2,4,8,20};
TFile *fout;
fout = new TFile(Form("%s",out.c_str()),"recreate");
fout->cd();
for(int i=0; i<nbins_pt; i++){
// hRelResponse[i]->SetMarkerColor(color[i]);
// hRelResponse[i]->SetLineColor(color[i]);
// hRelResponse[i]->SetTitle(Form("Rel, %g<p^{avg}_{T}<%g GeV",xbins_pt[i],xbins_pt[i+1]));
// hRelResponse[i]->Write();
// //hRelResponse[i]->Scale(1./hRelResponse[i]->Integral());
// hMPFResponse[i]->SetMarkerColor(color[i]);
// hMPFResponse[i]->SetLineColor(color[i]);
// hMPFResponse[i]->SetMarkerStyle(21);
// hMPFResponse[i]->SetLineStyle(2);
// hMPFResponse[i]->SetTitle(Form("MPF dijet, %g<p^{avg}_{T}<%g GeV",xbins_pt[i],xbins_pt[i+1]));
// hMPFResponse[i]->Write();
// //hMPFResponse[i]->Scale(1./hMPFResponse[i]->Integral());
// hMPFAbsPhoResponse[i]->SetMarkerColor(color[i]);
// hMPFAbsPhoResponse[i]->SetLineColor(color[i]);
// hMPFAbsPhoResponse[i]->SetTitle(Form("MPF #gamma+Jet, %g<p_{T}<%g GeV",xbins_pt[i],xbins_pt[i+1]));
// hMPFAbsPhoResponse[i]->Write();
for(int j=0; j<nbins_eta; j++){
avgAHisto[i][j]->Write();
avgBHisto[i][j]->Write();
hAvgAbsPhoResponse[i][j]->Write();
h_avgA[i][j]->Write();
h_nEntries[i][j]->Write();
h_avgB[i][j]->Write();
h_nEntriesB[i][j]->Write();
h_avgAbsPhoResponse[i][j]->Write();
h_nEntriesAbs[i][j]->Write();
}
}
fout->Close();
}