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 // -*- C++ -*-
 #ifndef HERWIG_NonLeptonicOmegaDecayer_H
 #define HERWIG_NonLeptonicOmegaDecayer_H
 // This is the declaration of the NonLeptonicOmegaDecayer class.
 
 #include "Baryon1MesonDecayerBase.h"
 
 namespace Herwig {
 using namespace ThePEG;
 
 /** \ingroup Decay
  *
  *  The <code>NonLeptonicOmegaDecayer</code> class is designed for the non-leptonic
  *  weak decay of the Omega to a baryon from the lightest \f$SU(3)\f$ octet and a 
  *  pseudoscalar meson. The results are taken from hep-ph/9905398.
  *
  *  due to problems with the size of the d-wave term and recent measurements giving
  * the opposite sign for the \f$\alpha\f$ parameter we have set this term to zero.
  *
  * @see Baryon1MesonDecayerBase.
  * 
  */
 class NonLeptonicOmegaDecayer: public Baryon1MesonDecayerBase {
 
 public:
 
   /**
    * Default constructor.
    */
   NonLeptonicOmegaDecayer();
 
   /**
    * Which of the possible decays is required
    * @param cc Is this mode the charge conjugate
    * @param parent The decaying particle
    * @param children The decay products
    */
   virtual int modeNumber(bool & cc, tcPDPtr parent, 
              const tPDVector & children) const;
 
   /**
    * Output the setup information for the particle database
    * @param os The stream to output the information to
    * @param header Whether or not to output the information for MySQL
    */
   virtual void dataBaseOutput(ofstream & os,bool header) const;
 
 public:
 
   /** @name Functions used by the persistent I/O system. */
   //@{
   /**
    * Function used to write out object persistently.
    * @param os the persistent output stream written to.
    */
   void persistentOutput(PersistentOStream & os) const;
 
   /**
    * Function used to read in object persistently.
    * @param is the persistent input stream read from.
    * @param version the version number of the object when written.
    */
   void persistentInput(PersistentIStream & is, int version);
   //@}
 
   /**
    * Standard Init function used to initialize the interfaces.
    */
   static void Init();
 
 protected:
 
   /**
    *  Coupling Members.
    */
   //@{
   /**
    * Couplings for spin-\f$\frac12\f$ to spin-\f$\frac32\f$ and a scalar. 
    * @param imode The mode
    * @param m0 The mass of the decaying particle.
    * @param m1 The mass of the outgoing baryon.
    * @param m2 The mass of the outgoing meson.
    * @param A The coupling \f$A\f$ described above.
    * @param B The coupling \f$B\f$ described above.
    */
   virtual void threeHalfHalfScalarCoupling(int imode,Energy m0,Energy m1,Energy m2,
                        Complex& A,Complex& B) const;
   //@}
 
 protected:
 
   /** @name Clone Methods. */
   //@{
   /**
    * Make a simple clone of this object.
    * @return a pointer to the new object.
    */
   virtual IBPtr clone() const {return new_ptr(*this);}
 
   /** Make a clone of this object, possibly modifying the cloned object
    * to make it sane.
    * @return a pointer to the new object.
    */
   virtual IBPtr fullclone() const {return new_ptr(*this);}
   //@}
 
 protected:
 
   /** @name Standard Interfaced functions. */
   //@{
   /**
    * Initialize this object after the setup phase before saving and
    * EventGenerator to disk.
    * @throws InitException if object could not be initialized properly.
    */
   virtual void doinit();
 
   /**
    * Initialize this object to the begining of the run phase.
    */
   virtual void doinitrun();
   //@}
 
 private:
 
   /**
    * Private and non-existent assignment operator.
    */
   NonLeptonicOmegaDecayer & operator=(const NonLeptonicOmegaDecayer &) = delete;
 
 private:
 
   /**
    * The \f$d^*\f$ coupling for the \f$B^*\f$ multiplet, this is \f$d^* /M_{B^*}\f$
    * from the paper.
    */
   double _dstar;
 
   /**
    * The \f$f^*\f$ coupling for the \f$B^*\f$ multiplet, this is \f$f^* /M_{B^*}\f$
    * from the paper.
    */
   double _fstar;
 
   /**
    * The \f$\omega_d\f$ coupling for the \f$R\f$ multiplet, this is \f$\omega_d/M_R\f$
    * from the paper.
    */
   double _omegad;
 
   /**
    * The \f$\omega_f\f$ coupling for the \f$R\f$ multiplet, this is \f$\omega_f/M_R\f$
    * from the paper.
    */
   double _omegaf;
 
   /**
    * The \f$\mathcal{C}_{B^*}\f$ coupling of the \f$B^*\f$ multiplet to the decuplet.
    */
   double _cbstar;
 
   /**
    * The \f$s_c\f$ coupling of the \f$R\f$ multiplet to the decuplet.
    */
   double _sc;
 
   /**
    * The \f$\mathcal{C}\f$ coupling of the decuplet to the ground state baryons.
    */
   double _c;
 
   /**
    * The pion decay constant \f$f_\pi\f$.
    */
   Energy _fpi;
 
   /**
    * The \f$h_\pi\f$ pion self-coupling.
    */
   double _hpi;
 
   /**
    * The \f$h_c\f$ coupling.
    */
   Energy _hc;
 
   /**
    * The \f$d\f$ coupling for the ground-state baryon multiplet.
    */
   Energy _d;
 
   /**
    * The \f$f\f$ coupling for the ground-state baryon multiplet.
    */
   Energy _f;
 
   /**
    * The mass of the \f$\Lambda^0\f$.
    */
   Energy _mlambda;
 
   /**
    * The mass of the \f$\Xi\f$.
    */
   Energy _mxi;
 
   /**
    * The mass of the \f$\Omega\f$.
    */
   Energy _momega;
 
   /**
    * The mass of the \f$\Xi^*\f$.
    */
   Energy _mxistar;
 
   /**
    * The mass of the \f$\pi^+\f$.
    */
   Energy _mpip;
 
   /**
    * The mass of the \f$\pi^0\f$.
    */
   Energy _mpi0;
 
   /**
    * The mass of the \f$K^+\f$.
    */
   Energy _mkp;
 
   /**
    * The mass of the \f$K^0\f$.
    */
   Energy _mk0;
 
   /**
    * The mass of the \f$B^*\f$ resonance, this is the \f$\frac12^+\f$ multiplet.
    */
   Energy _mbstar;
 
   /**
    * The mass of the \f$R\f$ resonance, this is the \f$\frac12^-\f$ multiplet.
    */
   Energy _mr;
 
   /**
    * use local values for the masses for the couplings
    */
   bool _localmasses;
 
   /**
    * The PDG code for the incoming baryon.
    */
   long _incomingB;
 
   /**
    * The PDG code for the outgoing baryon.
    */
   vector<long> _outgoingB;
 
   /**
    *  The PDG code for the outgoing meson.
    */
   vector<long> _outgoingM;
 
   /**
    * The \f$A\f$ coefficient for the decays.
    */
   vector<InvEnergy> _a;
 
   /**
    * The \f$B\f$ coefficient for the decays.
    */
   vector<InvEnergy> _b;
 
   /**
    * The maximum weights for the decays.
    */
   vector<double> _maxweight;
 };
 
 }
 
 
 #endif /* HERWIG_NonLeptonicOmegaDecayer_H */

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