EvtMRes.hh

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#ifndef __EVTMRES_HH__
#define __EVTMRES_HH__

#include "EvtGenBase/EvtMNode.hh"

class EvtMRes;

class EvtMLineShape {
  public:
    virtual ~EvtMLineShape(){};

    void setres( EvtMRes* n ) { _node = n; }
    virtual EvtComplex shape( const vector<EvtVector4R>& product ) const = 0;

    virtual EvtMLineShape* duplicate() const = 0;

  protected:
    EvtMRes* _node;
};

class EvtMRes : public EvtMNode {
  public:
    ~EvtMRes();

    int getnchild() const override { return _children.size(); }

    EvtComplex line( const vector<EvtVector4R>& product ) const override
    {
        return _lineshape->shape( product );
    }

  protected:
    // store the child nodes
    vector<EvtMNode*> _children;

    // store the parametrization amplitudes in some kind
    EvtSpinAmp _amp;

    // store the lineshape of the resonance
    EvtMLineShape* _lineshape;
};

#endif