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IntMC.cxx
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IntMC.cxx
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#include <iostream>
#include <cstdio>
#include <ctime>
#include <cmath>
#include "TFile.h"
#include "TTree.h"
#include "TChain.h"
#include "TH1D.h"
#include "TH2D.h"
#include "TMath.h"
#include "TF1.h"
#include "TGraph.h"
using namespace std;
//**********************************
//Read data
//**********************************
//TTree variables
int RunN;
int EventN;
int NTOFHit;
double Chi2T;
double Chi2C;
double TOFCl;
double Beta;
int NCounter[4];
double TOFEdepL[4];
int ZTOF;
double ZProb;
double TOFAsyUL;
double TOFAsyMM;
int IsMatch;
double Rig[3];
double Chisq[3];
double QTr1;
double QTr9;
double QTrInner;
int TrYPat;
double TrCl[2];
double TrInAsyE;
int NACC;
int NMCEv;
double MomMC;
double QMC;
double MassMC;
double DirMC[3];
int SelInfo;
int PhyT;
int TrGeoPat;
double IntCoo[3];
double IntDir[3];
int IntPID;
double IntMom;
//Read data
TChain *chain;
void ReadData()
{
chain = new TChain("QTree");
chain->Add("/afs/cern.ch/work/w/weisun/public/data/mc/dpmjet.root");
chain->SetBranchAddress("RunN",&RunN);
chain->SetBranchAddress("EventN",&EventN);
chain->SetBranchAddress("NTOFHit",&NTOFHit);
chain->SetBranchAddress("Chi2T",&Chi2T);
chain->SetBranchAddress("Chi2C",&Chi2C);
chain->SetBranchAddress("TOFCl",&TOFCl);
chain->SetBranchAddress("Beta",&Beta);
chain->SetBranchAddress("NCounter",&NCounter);
chain->SetBranchAddress("TOFEdepL",&TOFEdepL);
chain->SetBranchAddress("ZTOF",&ZTOF);
chain->SetBranchAddress("ZProb",&ZProb);
chain->SetBranchAddress("TOFAsyUL",&TOFAsyUL);
chain->SetBranchAddress("TOFAsyMM",&TOFAsyMM);
chain->SetBranchAddress("IsMatch",&IsMatch);
chain->SetBranchAddress("Rig",&Rig);
chain->SetBranchAddress("Chisq",&Chisq);
chain->SetBranchAddress("QTr1",&QTr1);
chain->SetBranchAddress("QTr9",&QTr9);
chain->SetBranchAddress("QTrInner",&QTrInner);
chain->SetBranchAddress("TrYPat",&TrYPat);
chain->SetBranchAddress("TrCl",&TrCl);
chain->SetBranchAddress("TrInAsyE",&TrInAsyE);
chain->SetBranchAddress("NACC",&NACC);
chain->SetBranchAddress("NMCEv",&NMCEv);
chain->SetBranchAddress("MomMC",&MomMC);
chain->SetBranchAddress("QMC",&QMC);
chain->SetBranchAddress("MassMC",&MassMC);
chain->SetBranchAddress("DirMC",&DirMC);
chain->SetBranchAddress("SelInfo",&SelInfo);
chain->SetBranchAddress("PhyT",&PhyT);
chain->SetBranchAddress("TrGeoPat",&TrGeoPat);
chain->SetBranchAddress("IntCoo",&IntCoo);
chain->SetBranchAddress("IntDir",&IntDir);
chain->SetBranchAddress("IntPID",&IntPID);
chain->SetBranchAddress("IntMom",&IntMom);
}
//**********************************
//Define variables
//**********************************
//Binning
double qbin[3] = {200,0,10};
double xbin[3] = {100,0,10};
double rbin[3] = {18,0.2,2};
char name[100];
//Defined variables
double LogRig;
int iBinRig;
bool pb10, pb11, pc12, po16;
bool TrigCut, RecCut, PreCut, TempCut, TOFCut;
//Define variables
void DefineVariables()
{
//Binning
LogRig = TMath::Log10(MomMC/QMC);
iBinRig = (int)(10*LogRig)-2;
//Particle
pb10 = QMC==5 && MassMC<10;
pb11 = QMC==5 && MassMC>10;
pc12 = QMC==6;
po16 = QMC==8;
//Cut
//TrigCut = (PhyT&0x2) || (PhyT&0x4) || (PhyT&0x10);
TrigCut = (PhyT&0x4) || (PhyT&0x8);
RecCut = SelInfo==0;
PreCut = NTOFHit==4 && IsMatch;
TempCut = IntCoo[2]<-50 && QTrInner>QMC*0.75;
TOFCut = Chi2T<15 && Chi2C<15 && Beta>0.4 && Beta<1.2 && ZProb>0.9;
TOFCut &= TOFCl>0.7 && TMath::Abs(TOFAsyUL)<0.3 && TOFAsyMM<0.4;
}
//**********************************
//Define histograms and save results
//**********************************
//Survival probability
TH1D *htot[4], *hrec[4][18], *htmp[4][18];
//BetaH reconstruction efficiency
TH1D *hetof[4];
//Define histograms
void DefHist()
{
for(int i=0;i<4;i++)
{
sprintf(name,"htot_%d",i);
htot[i] = new TH1D(name,name,rbin[0],rbin[1],rbin[2]);
for(int j=0;j<18;j++)
{
sprintf(name,"hrec_%d_%d",i,j+2);
hrec[i][j] = new TH1D(name,name,qbin[0],qbin[1],qbin[2]);
sprintf(name,"htmp_%d_%d",i,j+2);
htmp[i][j] = new TH1D(name,name,qbin[0],qbin[1],qbin[2]);
}
sprintf(name,"hetof_%d",i);
hetof[i] = new TH1D(name,name,rbin[0],rbin[1],rbin[2]);
}
}
//Save results
void SaveResults()
{
//Open file
TFile *ff=new TFile("int_mc_dpmjet.root","RECREATE");
ff->cd();
//Write Hisogram
for(int i=0;i<4;i++)
{
htot[i]->Write();
for(int j=0;j<18;j++)
{
hrec[i][j]->Write();
htmp[i][j]->Write();
}
hetof[i]->Write();
}
//Close file
ff->Write();
ff->Close();
}
//**********************************
//Event loop
//**********************************
void DoEventLoop()
{
for(int index=0;index<chain->GetEntries();index++)
{
chain->GetEntry(index);
//Define variables
DefineVariables();
//Prelimilary cuts - within acceptance of L1 to L8
if(LogRig<0.2 || LogRig>=2) continue; //Rigidity range
if(TrigCut==false) continue;
//Total
if(pb10) htot[0]->Fill(LogRig);
if(pb11) htot[1]->Fill(LogRig);
if(pc12) htot[2]->Fill(LogRig);
if(po16) htot[3]->Fill(LogRig);
//QTrInner spectrum and template
if(RecCut && PreCut)
{
//With TrTrack reconstructed
if(pb10) hrec[0][iBinRig]->Fill(QTrInner);
if(pb11) hrec[1][iBinRig]->Fill(QTrInner);
if(pc12) hrec[2][iBinRig]->Fill(QTrInner);
if(po16) hrec[3][iBinRig]->Fill(QTrInner);
//Templates
if(TempCut)
{
if(pb10) htmp[0][iBinRig]->Fill(QTrInner);
if(pb11) htmp[1][iBinRig]->Fill(QTrInner);
if(pc12) htmp[2][iBinRig]->Fill(QTrInner);
if(po16) htmp[3][iBinRig]->Fill(QTrInner);
}
}
//BetaH reconstruction efficiency
if(SelInfo!=2)
{
if(pb10) hetof[0]->Fill(LogRig);
if(pb11) hetof[1]->Fill(LogRig);
if(pc12) hetof[2]->Fill(LogRig);
if(po16) hetof[3]->Fill(LogRig);
}
}
}
//**********************************
//Retouch
//**********************************
void Retouch()
{
float a, b, ea, eb;
for(int i=0;i<4;i++)
{
for(int r=1;r<=rbin[0];r++)
{
a=hetof[i]->GetBinContent(r);
b=htot[i]->GetBinContent(r);
ea=TMath::Sqrt(a);
eb=TMath::Sqrt(b);
hetof[i]->SetBinContent(r,a/b);
hetof[i]->SetBinError(r,a/b*TMath::Sqrt(ea*ea/a/a+eb*eb/b/b));
}
}
}
//**********************************
//Main program
//**********************************
int main(int argc,char **argv)
{
ReadData();
DefHist();
DoEventLoop();
Retouch();
SaveResults();
return 0;
}