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 // -*- C++ -*-
 #ifndef THEPEG_LHTPModel_H
 #define THEPEG_LHTPModel_H
 //
 // This is the declaration of the LHTPModel class.
 //
 
 #include "Herwig/Models/General/BSMModel.h"
 #include "ThePEG/Helicity/Vertex/AbstractVSSVertex.h"
 #include "LHTPModel.fh"
 
 namespace Herwig {
 
 /**
  * The LHTPModel class is the main class for the
  * implementation of the Little Higgs model with T-parity
  *
  * @see \ref LHTPModelInterfaces "The interfaces"
  * defined for LHTPModel.
  */
 class LHTPModel: public BSMModel {
 
 public:
 
   /**
    * The default constructor.
    */
   LHTPModel();
 
   /**
    *  Access to the parameters of the model
    */
   //@{
   /**
    *  The vacuum expection value
    */
   Energy vev() const { return v_; }
 
   /**
    *  The \f$f\f$ scale of the non-linear \f$\sigma\f$-model
    */
   Energy f() const { return f_; }
 
   /**
    *  \f$\sin\alpha\f$
    */
   double sinAlpha() const { return salpha_; }
 
   /**
    *  \f$\cos\alpha\f$
    */
   double cosAlpha() const { return calpha_; }
 
   /**
    *  \f$\sin\beta\f$
    */
   double sinBeta() const { return sbeta_; }
 
   /**
    *  \f$\cos\beta\f$
    */
   double cosBeta() const { return cbeta_; }
 
   /**
    *  \f$\sin\theta_H\f$
    */
   double sinThetaH() const { return sthetaH_; }
 
   /**
    *  \f$\cos\theta_H\f$
    */
   double cosThetaH() const { return cthetaH_; }
 
   /**
    *  \f$\sin\theta_L\f$
    */
   double sinThetaL() const { return sL_;}
 
   /**
    *  \f$\cos\theta_L\f$
    */
   double cosThetaL() const { return cL_;}
 
   /**
    *  \f$\sin\theta_R\f$
    */
   double sinThetaR() const { return sR_;}
 
   /**
    *  \f$\cos\theta_R\f$
    */
   double cosThetaR() const { return cR_;}
   //@}
 
   /**
    *  Yukwawa for T-odd fermions
    */
   //@{
   /**
    *  The \f$\kappa_q\f$ parameter which controls the properties of the
    *  T-odd quarks
    */
   double kappaQuark() const { return kappaQuark_;}
 
   /**
    *  The \f$\kappa_\ell\f$ parameter which controls the properties of the
    *  T-odd leptons
    */
   double kappaLepton() const { return kappaLepton_;}
   //@}
 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();
 
 protected:
 
   /** @name Clone Methods. */
   //@{
   /**
    * Make a simple clone of this object.
    * @return a pointer to the new object.
    */
   virtual IBPtr clone() const;
 
   /** 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;
   //@}
 
 protected:
 
   /**
    *  Calculate the mixing in the top sector of the model
    *  and the masses of the T-odd and T-even heavy tops
    *  The mixings are calculated by solving Eqns 2.22 and 2.24 of hep-ph/0506042
    *  for \f$\lambda_1$ and \f$\lambda_2\f$ given the input value of \f$\sin\alpha\f$
    *  and the top mass.
    */
   void topMixing(Energy & MTp, Energy & MTm);
 
 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.
    */
   LHTPModel & operator=(const LHTPModel &) = delete;
 
 private:
 
   /**
    *  The constant for the non-linear \f$\sigma\f$ model
    */
   Energy f_;
 
   /**
    *  @name The mixing in the top quark sector
    */
   //@{
   /**
    *  \f$\sin\alpha\f$, taken as an input
    */
   double salpha_;
 
   /**
    *  \f$\cos\alpha\f$
    */
   double calpha_;
 
   /**
    *  \f$\sin\beta\f$
    */
   double sbeta_;
 
   /**
    *  \f$\cos\beta\f$
    */
   double cbeta_;
   //@}
 
   /**
    *  @name Mixing of the heavy photon and Z
    */
   //@{
   /**
    *  \f$\sin\theta_H\f$
    */
   double sthetaH_;
 
   /**
    *  \f$\cos\theta_H\f$
    */
   double cthetaH_;
   //@}
 
   /**
    *  @name Mixings in the top sector
    */
   //@{
   /**
    *  \f$\sin\theta_L\f$
    */
   double sL_;
 
   /**
    *  \f$\cos\theta_L\f$
    */
   double cL_;
 
   /**
    *  \f$\sin\theta_R\f$
    */
   double sR_;
 
   /**
    *  \f$\cos\theta_R\f$
    */
   double cR_;
   //@}
 
   /**
    *  The \f$\kappa_q\f$ parameter which controls the properties of the
    *  T-odd quarks
    */
   double kappaQuark_;
 
   /**
    *  The \f$\kappa_\ell\f$ parameter which controls the properties of the
    *  T-odd leptons
    */
   double kappaLepton_;
 
   /**
    *  The mass of the Standard Model higgs
    */
   Energy mh_;
 
   /**
    *  The vacuum expection valve
    */
   Energy v_;
 
   /**
    *  The \f$g\f$ coupling
    */
   double g_;
 
   /**
    *  the \f$g'\f$ coupling
    */
   double gp_;
 
   /**
    *  Method for evaluating the masses
    */
   bool approximate_;
 
   /**
    *  WHH Vertex
    */
   AbstractVSSVertexPtr WHHVertex_;
 };
 
 }
 
 #endif /* THEPEG_LHTPModel_H */

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