LauGounarisSakuraiRes.hh

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// Copyright University of Warwick 2006 - 2013.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

// Authors:
// Thomas Latham
// John Back
// Paul Harrison

#ifndef LAU_GOUNARIS_SAKURAI_RES
#define LAU_GOUNARIS_SAKURAI_RES

#include "TString.h"

#include "LauComplex.hh"
#include "LauAbsResonance.hh"


class LauGounarisSakuraiRes : public LauAbsResonance {

        public:

                LauGounarisSakuraiRes(TString resName, Double_t resMass, Double_t resWidth,
                                Int_t resSpin, Int_t resCharge, Int_t resPairAmpInt, 
                                const LauDaughters* daughters);

                virtual ~LauGounarisSakuraiRes();

                virtual void initialise();


                virtual LauAbsResonance::LauResonanceModel getResonanceModel() const {return LauAbsResonance::GS;}


                void setBarrierRadii(Double_t resRadius, Double_t parRadius, LauAbsResonance::BarrierType type);

        protected:

                virtual LauComplex resAmp(Double_t mass, Double_t spinTerm);


                Double_t calcFFactor(Double_t z);

        private:
                Double_t q0_; 
                Double_t p0_;
                Double_t pstar0_;
                Double_t resMassSq_;
                Double_t mDaugSum_; 
                Double_t mDaugSumSq_;
                Double_t mDaugDiff_; 
                Double_t mDaugDiffSq_;
                Double_t mParentSq_; 
                Double_t mBachSq_;
                Double_t h0_; 
                Double_t dhdm0_; 
                Double_t d_;

                Double_t resR_; 
                Double_t parR_;
                Double_t resRSq_; 
                Double_t parRSq_; 
                Double_t FR0_; 
                Double_t FB0_;
                LauAbsResonance::BarrierType barrierType_;

                ClassDef(LauGounarisSakuraiRes,0) // Gounaris-Sakurai resonance model

};

#endif