LauBlattWeisskopfFactor.hh

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/*
Copyright 2014 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_BLATTWEISSKOPFFACTOR
#define LAU_BLATTWEISSKOPFFACTOR

#include "Rtypes.h"

class LauParameter;
class LauResonanceInfo;


class LauBlattWeisskopfFactor {

        public:
                enum BarrierType {
                        BWBarrier,      
                        BWPrimeBarrier, 
                        ExpBarrier      
                };

                enum RestFrame {
                        Covariant,      
                        ParentFrame,    
                        ResonanceFrame  
                };

                enum BlattWeisskopfCategory {
                        Default,        //*!< indicates that LauResonanceMaker should use the appropriate category for the given resonance */
                        Parent,         //*!< indicates that this is the factor for the decay of the parent particle */
                        Indep,          //*!< indicates that this resonance should be independent of all others */
                        Light,          //*!< default category for light unflavoured states, e.g. rho(77), f0(980), etc. */
                        Kstar,          //*!< default category for K* states */
                        Charm,          //*!< default category for D* states */
                        StrangeCharm,   //*!< default category for Ds* states */
                        Charmonium,     //*!< default category for ccbar states */
                        Beauty,         //*!< default category for B* states */
                        StrangeBeauty,  //*!< default category for Bs* states */
                        CharmBeauty,    //*!< default category for Bc* states */
                        Custom1,        //*!< user-defined category */
                        Custom2,        //*!< user-defined category */
                        Custom3,        //*!< user-defined category */
                        Custom4         //*!< user-defined category */
                };

                LauBlattWeisskopfFactor( const LauResonanceInfo& resInfo, const BarrierType barrierType, const RestFrame restFrame, const BlattWeisskopfCategory category );

                LauBlattWeisskopfFactor( const LauResonanceInfo& resInfo, const Double_t resRadius, const BarrierType barrierType, const RestFrame restFrame, const BlattWeisskopfCategory category );

                virtual ~LauBlattWeisskopfFactor();


                LauBlattWeisskopfFactor* createClone( const UInt_t newSpin );

                const LauParameter* getRadiusParameter() const { return radius_; }

                LauParameter* getRadiusParameter() { return radius_; }

                BarrierType getBarrierType() const { return barrierType_; }

                RestFrame getRestFrame() const { return restFrame_; }


                Double_t calcFormFactor( const Double_t p ) const;

        protected:
                TString setRadiusName( const LauResonanceInfo& resInfo, const BlattWeisskopfCategory category );

        private:
                LauBlattWeisskopfFactor( const LauBlattWeisskopfFactor& other, const UInt_t newSpin );

                LauBlattWeisskopfFactor& operator=( const LauBlattWeisskopfFactor& other );

                const UInt_t spin_;

                LauParameter* radius_;

                const BarrierType barrierType_;

                const RestFrame restFrame_;

                ClassDef(LauBlattWeisskopfFactor, 0)
};

#endif