EvtBToDiBaryonlnupQCDFF.hh
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EvtBToDiBaryonlnupQCDFF.hh
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	//--------------------------------------------------------------------------
	//
	// Environment:
	// This software is part of the EvtGen package developed jointly
	// for the BaBar and CLEO collaborations. If you use all or part
	// of it, please give an appropriate acknowledgement.
	//
	// Copyright Information:
	// Copyright (C) 1998 Caltech, UCSB
	//
	// Module: EvtGen/EvtBToDiBaryonlnupQCDFF.hh.hh
	//
	// Description: Module for computation of B->ppbar form factors according
	// to pQCD counting rules, see arXiv:1107.0801.
	//
	// Modification history:
	//
	// Mark Smith July 17, 2017 Module created
	// John B Oct 2018 Added FormFactors class
	//
	//------------------------------------------------------------------------

	#ifndef EVTBTODIBARYONLNUPQCDFF_HH
	#define EVTBTODIBARYONLNUPQCDFF_HH

	class EvtParticle;
	#include <vector>

	class EvtBToDiBaryonlnupQCDFF {

	public:

	class FormFactors final {
	public:

	double F1, F2, F3, F4, F5;
	double G1, G2, G3, G4, G5;

	};

	EvtBToDiBaryonlnupQCDFF();

	EvtBToDiBaryonlnupQCDFF(std::vector<double>& DParameters);

	void getDiracFF(EvtParticle* parent, double dibaryonMass,
	EvtBToDiBaryonlnupQCDFF::FormFactors& FF) const;

	void getRaritaFF(EvtParticle* parent, double dibaryonMass,
	EvtBToDiBaryonlnupQCDFF::FormFactors& FF) const;

	void getFF(EvtParticle* parent, double dibaryonMass,
	EvtBToDiBaryonlnupQCDFF::FormFactors& FF) const;

	private:

	std::vector<double> DPars;
	int nDPars;

	};

	#endif