TTriggerReweight.h

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// Class TTriggerReweight
//
// Author     : E. Sauvan
// Created    : 24/11/2004
// Last update: 
//          by: 
// Comment: Class to handle reweigthing from trigger efficiencies
#ifndef __TTRIGGERREWEIGHT
#define __TTRIGGERREWEIGHT

#include <cstdio>
#include <cstdlib>

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <list>

#include <TObject.h>
#include <TMath.h>


// For trigger efficiency
// Horrible C-code
// Common used for trigger efficiencies
typedef struct {
    Float_t a[10], b[10], c__[10], gbins[9], out3[24]      /* was [3][8] */,
      tr_val__[10];
} tr99_1_NEW;
// Fin del horor 1


using namespace std;

class TTriggerReweight 
{
private:

  // For trigger efficiencies
  // HOROR LA segunda parte
  tr99_1_NEW tr99_1;
  Float_t trig_corr__(Float_t *pet, Float_t *gar, Int_t *iyr);
  Float_t trigeff_9899__(Float_t *x, Float_t *y, Int_t *imeth, Int_t *iyear);
  Int_t fill_(Int_t *sel, Int_t *iyr);
  Int_t inter_(Int_t *g1,Int_t *g2,Float_t *gar,Float_t *pet,Int_t *sel, Int_t *iyr);
  // Fin de la segunda parte...quien sigue????


//---- for Hera-2, 2004 trigger eff.
  Bool_t fCCTrigHERA2Init;
  Double_t triggconst[8][8];
  Double_t   xl[8]; 
  Double_t   xh[8];
  Double_t  q2l[8];
  Double_t  q2h[8];
  void SetTriggEffTable();


public:

//---- CC trigger efficiency
  Float_t CCTriggerEff(Float_t Pth,Float_t Thh,Int_t RunPeriod);
  Float_t ApplyCCTRIGGEFFreweightHERA2(Float_t xhadrons, Float_t Q2hadrons);


//---- di-jet events trigger efficiency
  Float_t DiJetsTriggerEff(Float_t PtJet1,Float_t ThetaJet1,Int_t RunPeriod=5);

  
//... Standard constructor and destructor
  TTriggerReweight();

};

#endif

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