LauBlattWeisskopfFactor.hh

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// Copyright University of Warwick 2014.
// 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_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