genRootDecayChain.hh
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genRootDecayChain.hh
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	#ifndef GENROOT_DECAYCHAIN_HH
	#define GENROOT_DECAYCHAIN_HH

	#include "TFile.h"
	#include "TH1.h"
	#include "TTree.h"
	#include "TCanvas.h"

	#include <string>

	class EvtParticle;

	class genRootDecayChain {

	public:

	genRootDecayChain(const std::string& decayFileName,
	const std::string& rootFileName,
	const std::string& parentName,
	int nEvents,
	bool storeMtmXYZ = false);

	~genRootDecayChain();

	void run();

	protected:

	void initTree();
	void generateEvents();
	void storeDaughterInfo(EvtParticle* theParticle);
	void storeTreeInfo(EvtParticle* theParticle);
	void writeTree();

	private:

	std::string _decayFileName;
	std::string _rootFileName;
	std::string _parentName;
	int _nEvents;
	bool _storeMtmXYZ;

	TFile* _theFile;
	TTree* _theTree;
	TH1D* _probHist;
	TCanvas* _theCanvas;

	int _eventId;
	int _PDGId;
	int _dVtx;
	int _pVtx;
	int _daug;
	double _p;
	double _E;
	double _pL;
	double _EL;
	double _m;
	double _px;
	double _py;
	double _pz;
	double _pxL;
	double _pyL;
	double _pzL;
	double _t;

	int _vertexNo;

	};


	#endif