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 // -*- C++ -*-
 #ifndef HERWIG_LHModel_H
 #define HERWIG_LHModel_H
 //
 // This is the declaration of the LHModel class.
 //
 
 #include "Herwig/Models/General/BSMModel.h"
 #include "ThePEG/Helicity/Vertex/AbstractVSSVertex.h"
 #include "ThePEG/Helicity/Vertex/AbstractVVSSVertex.h"
 #include "LHModel.fh"
 
 namespace Herwig {
 
 using namespace ThePEG;
 
 /**
  * The LHModel class is the main class for the implementation of the Little Higgs model in Herwig.
  * In inherits from the StandardModel class and implements the calcuation of the couplings 
  * and masses in the Little Higgs model and storage of the additional couplings.
  *
  * @see \ref LHModelInterfaces "The interfaces"
  * defined for LHModel.
  */
 class LHModel: public BSMModel {
 
 public:
 
   /**
    * The default constructor.
    */
   LHModel();
 
 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);
   //@}
 
   /**
    * The standard Init function used to initialize the interfaces.
    * Called exactly once for each class by the class description system
    * before the main function starts or
    * when this class is dynamically loaded.
    */
   static void Init();
 
 public:
 
   /**
    *  Access to the parameters of the model
    */
   //@{
   /**
    *  The \f$\lambda_1\f$ top Yukawa coupling
    */
   double lambda1() const {return _lambda1;}
 
   /**
    *  The \f$\lambda_2\f$ top Yukawa coupling
    */
   double lambda2() const {return _lambda2;}
 
   /**
    *  The sine of the \f$\theta\f$ mixing angle
    */
   double sinTheta() const {return _s;}
 
   /**
    *  The cosine of the \f$\theta\f$ mixing angle
    */
   double cosTheta() const {return _c;}
 
   /**
    *  The sine of the \f$\theta'\f$ mixing angle
    */
   double sinThetaPrime() const {return _sp;}
 
   /**
    *  The cosine of the \f$\theta'\f$ mixing angle
    */
   double cosThetaPrime() const {return _cp;}
 
   /**
    *  The sine of the Higgs mixing angle
    */
   double sinTheta0() const {return _s0;}
 
   /**
    *  The cosine of the Higgs mixing angle
    */
   double cosTheta0() const {return _c0;}
 
   /**
    *  The sine of the pseudoscalar Higgs mixing angle
    */
   double sinThetaP() const {return _sP;}
 
   /**
    *  The cosine of the pseudoscalar Higgs mixing angle
    */
   double cosThetaP() const {return _cP;}
 
   /**
    *  The sine of the charged Higgs mixing angle
    */
   double sinThetaPlus() const {return _sPlus;}
 
   /**
    *  The cosine of the charged Higgs mixing angle
    */
   double cosThetaPlus() const {return _cPlus;}
 
   /**
    *  The vacuum expection value
    */
   Energy vev() const {return _v;}
 
   /**
    *  The vacuum expection value
    */
   Energy vevPrime() const {return _v*_vacratio;}
 
   /**
    *  The \f$f\f$ scale of the non-linear \f$\sigma\f$-model
    */
   Energy f() const {return _f;}
   //@}
 
 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 an
    * EventGenerator to disk.
    * @throws InitException if object could not be initialized properly.
    */
   virtual void doinit();
   //@}
 
 private:
 
   /**
    * The assignment operator is private and must never be called.
    * In fact, it should not even be implemented.
    */
   LHModel & operator=(const LHModel &) = delete;
 
 private:
 
   /**
    *  Parameters for the model
    */
   //@{
   /**
    *  The value of \f$\cot\theta\f$ for the mixing with the \f$g\f$ coupling 
    */
   double _cott;
 
   /**
    *  The value of \f$\tan\theta'\f$ for the mixing with the \f$g'\f$ coupling
    */
   double _tantp;
 
   /**
    *  The vacuum expection valve
    */
   Energy _v;
 
   /**
    *  The ratio \f$\lambda_2/\lambda_1\f$
    */
   double _lamratio;
 
   /**
    *  The mass of the lightest Higgs boson
    */
   Energy _mH;
 
   /**
    *  The ratio of the vacuum exception values \f$v'/v\f$
    */
   double _vacratio;
 
   /**
    *  The scale for the non-linear \f$\sigma\f$-model
    */
   Energy _f;
 
   /**
    *  The top Yukawa couplings
    */
   double _lambda1,_lambda2;
 
   /**
    *  The sine of the \f$\theta\f$ mixing angle
    */
   double _s;
 
   /**
    *  The cosine of the \f$\theta\f$ mixing angle
    */
   double _c;
 
   /**
    *  The sine of the \f$\theta'\f$ mixing angle
    */
   double _sp;
 
   /**
    *  The cosine of the \f$\theta'\f$ mixing angle
    */
   double _cp;
 
   /**
    *  The sine of the Higgs mixing angle
    */
   double _s0;
 
   /**
    *  The cosine of the Higgs mixing angle
    */
   double _c0;
 
   /**
    *  The sine of the pseudoscalar Higgs mixing angle
    */
   double _sP;
 
   /**
    *  The cosine of the pseudoscalar Higgs mixing angle
    */
   double _cP;
 
   /**
    *  The sine of the charged Higgs mixing angle
    */
   double _sPlus;
 
   /**
    *  The cosine of the charged Higgs mixing angle
    */
   double _cPlus;
   //@}
 
   /**
    *  Additional vertices
    */
   //@{
   /**
    *  WHH Vertex
    */
   AbstractVSSVertexPtr WHHVertex_;
   //@}
 };
 
 }
 
 #endif /* HERWIG_LHModel_H */

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