LauFlatteRes.hh

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/*
Copyright 2004 University of Warwick

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

/*
Laura++ package authors:
John Back
Paul Harrison
Thomas Latham
*/

#ifndef LAU_FLATTE_RES
#define LAU_FLATTE_RES

#include "TString.h"

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


class LauFlatteRes : public LauAbsResonance {

        public:

                LauFlatteRes(LauResonanceInfo* resInfo, const Int_t resPairAmpInt, const LauDaughters* daughters);
                
                virtual ~LauFlatteRes();

                virtual void initialise();


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


                virtual void setResonanceParameter(const TString& name, const Double_t value);
                

                virtual void floatResonanceParameter(const TString& name);


                virtual LauParameter* getResonanceParameter(const TString& name);


                virtual const std::vector<LauParameter*>& getFloatingParameters();

        protected:

                void setg1Parameter(const Double_t g1);


                void setg2Parameter(const Double_t g2);


                Double_t getg1Parameter() const {return (g1_!=0) ? g1_->unblindValue() : 0.0;}


                Double_t getg2Parameter() const {return (g2_!=0) ? g2_->unblindValue() : 0.0;}


                Double_t fixg1Parameter() const {return (g1_!=0) ? g1_->fixed() : kTRUE;}


                Double_t fixg2Parameter() const {return (g2_!=0) ? g2_->fixed() : kTRUE;}


                virtual LauComplex resAmp(Double_t mass, Double_t spinTerm);

        private:
                LauFlatteRes(const LauFlatteRes& rhs);

                LauFlatteRes& operator=(const LauFlatteRes& rhs);

                LauParameter* g1_; 
                LauParameter* g2_;

                Double_t mSumSq0_; 
                Double_t mSumSq1_; 
                Double_t mSumSq2_; 
                Double_t mSumSq3_;

                Bool_t useAdlerTerm_;

                Double_t sA_;

                Bool_t absorbM0_;

                ClassDef(LauFlatteRes,0)
};

#endif