Matchbox/Scales/MatchboxTopIndividualMTScale.h

0001 // -*- C++ -*-
0002 //
0003 // MatchboxTopIndividualMTScale.h is a part of Herwig - A multi-purpose Monte Carlo event generator
0004 // Copyright (C) 2002-2019 The Herwig Collaboration
0005 //
0006 // Herwig is licenced under version 3 of the GPL, see COPYING for details.
0007 // Please respect the MCnet academic guidelines, see GUIDELINES for details.
0008 //
0009 #ifndef Herwig_MatchboxTopIndividualMTScale_H
0010 #define Herwig_MatchboxTopIndividualMTScale_H
0011 //
0012 // This is the declaration of the MatchboxTopIndividualMTScale class.
0013 //
0014
0015 #include "Herwig/MatrixElement/Matchbox/Utility/MatchboxScaleChoice.h"
0016
0017 namespace Herwig {
0018
0019 using namespace ThePEG;
0020
0021 /**
0022  * \ingroup Matchbox
0023  * \author Stephen Webster
0024  *
0025  * \brief MatchboxTopIndividualMTScale implements the scale as
0026  *        the transverse masses of the top quark in a top-pair process.
0027  *
0028  */
0029 class MatchboxTopIndividualMTScale: public MatchboxScaleChoice {
0030
0031 public:
0032
0033   /** @name Standard constructors and destructors. */
0034   //@{
0035   /**
0036    * The default constructor.
0037    */
0038   MatchboxTopIndividualMTScale();
0039
0040   /**
0041    * The destructor.
0042    */
0043   virtual ~MatchboxTopIndividualMTScale();
0044   //@}
0045
0046 public:
0047
0048   /**
0049    * Return the renormalization scale.
0050    */
0051   virtual Energy2 renormalizationScale() const;
0052
0053   /**
0054    * Return the factorization scale.
0055    */
0056   virtual Energy2 factorizationScale() const;
0057
0058   /**
0059    * Return the shower hard scale.
0060    */
0061   virtual Energy2 showerScale() const;
0062
0063 public:
0064
0065   /** @name Functions used by the persistent I/O system. */
0066   //@{
0067   /**
0068    * Function used to write out object persistently.
0069    * @param os the persistent output stream written to.
0070    */
0071   void persistentOutput(PersistentOStream & os) const;
0072
0073   /**
0074    * Function used to read in object persistently.
0075    * @param is the persistent input stream read from.
0076    * @param version the version number of the object when written.
0077    */
0078   void persistentInput(PersistentIStream & is, int version);
0079   //@}
0080
0081   /**
0082    * The standard Init function used to initialize the interfaces.
0083    * Called exactly once for each class by the class description system
0084    * before the main function starts or
0085    * when this class is dynamically loaded.
0086    */
0087   static void Init();
0088
0089 protected:
0090
0091   /** @name Clone Methods. */
0092   //@{
0093   /**
0094    * Make a simple clone of this object.
0095    * @return a pointer to the new object.
0096    */
0097   virtual IBPtr clone() const;
0098
0099   /** Make a clone of this object, possibly modifying the cloned object
0100    * to make it sane.
0101    * @return a pointer to the new object.
0102    */
0103   virtual IBPtr fullclone() const;
0104   //@}
0105
0106 private:
0107
0108
0109 // If needed, insert declarations of virtual function defined in the
0110 // InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
0111
0112
0113 private:
0114
0115   /**
0116    * Switch to choose the definition of the shower hard scale.
0117    */
0118   unsigned int theShowerScaleMode;
0119
0120   /**
0121    * Multiplicative factor for the scale definition
0122    */
0123   double theFactor;
0124
0125   /**
0126    * Switch to choose which top quark/antiquak to use to
0127    * compute the scale.
0128    */
0129   unsigned int theTopOrAntitop;
0130
0131   /**
0132    * The assignment operator is private and must never be called.
0133    * In fact, it should not even be implemented.
0134    */
0135   MatchboxTopIndividualMTScale & operator=(const MatchboxTopIndividualMTScale &) = delete;
0136
0137 };
0138
0139 }
0140
0141 #endif /* Herwig_MatchboxTopIndividualMTScale_H */