TMCXSectionReweight.h

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// Class TMCXSectionReweight
//
// Author     : E. Sauvan
// Created    : 20/12/2004
// Last update: $Date: 2005/05/21 14:38:29 $
//          by: $Author: sauvan $
// Comment: Class to handle reweigthing of MC cross section, NLO, pdf, etc ...
#ifndef __TMCXSECTIONREWEIGHT
#define __TMCXSECTIONREWEIGHT

//--- if MARQCDFUNC is used
#define USEMARQCDFUNC 0

#include <cstdio>
#include <cstdlib>

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

//--- Root includes
#include <TObject.h>
#include <TMath.h>

//--- H1OO includes
#include "H1Mods/H1PartMCArrayPtr.h"
#include "H1Mods/H1PartMC.h"

//--- Marana includes
#if USEMARQCDFUNC
#include "MarQCDFunc/MarQCDFunc.h"
#endif
//#include "Marana/TMarEvent.h"

using namespace std;

class TMCXSectionReweight 
{

private:


  // Correction NLO EPVEC
  Float_t nlocorr_(Float_t *y, Float_t *pt, Int_t *bsign, Float_t *ene, Int_t *opt, Float_t *code);



public:

Double_t GetEpvecNLOWeight(H1PartMCArrayPtr GenPart,Float_t pBeamEnergy,Int_t DecayType);
Double_t GetQCDWeight(Double_t& xGen,Double_t& Q2Gen,Double_t& pola,Short_t& LeptonCharge,Short_t& MCType);



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

};

#endif

---