Matchbox/Phasespace/PhasespaceCouplings.h

0001 // -*- C++ -*-
0002 //
0003 // PhasespaceCouplings.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_PhasespaceCouplings_H
0010 #define Herwig_PhasespaceCouplings_H
0011 //
0012 // This is the declaration of the PhasespaceCouplings class.
0013 //
0014
0015 #include "ThePEG/Handlers/HandlerBase.h"
0016 #include "ThePEG/Persistency/PersistentOStream.h"
0017 #include "ThePEG/Persistency/PersistentIStream.h"
0018
0019 namespace Herwig {
0020
0021 using namespace ThePEG;
0022
0023 typedef std::tuple<long,long,long> LTriple;
0024
0025 inline PersistentOStream& operator<<(PersistentOStream& os, const LTriple& t) {
0026   os << std::get<0>(t) << std::get<1>(t) << std::get<2>(t);
0027   return os;
0028 }
0029
0030 inline PersistentIStream& operator>>(PersistentIStream& is, LTriple& t) {
0031   is >> std::get<0>(t) >> std::get<1>(t) >> std::get<2>(t);
0032   return is;
0033 }
0034
0035 /**
0036  *
0037  * \ingroup Matchbox
0038  * \author Simon Platzer
0039  *
0040  * \brief Store couplings for the phase space generator.
0041  *
0042  * @see \ref PhasespaceCouplingsInterfaces "The interfaces"
0043  * defined for PhasespaceCouplings.
0044  */
0045 class PhasespaceCouplings: public HandlerBase {
0046
0047 public:
0048
0049   /**
0050    * Couplings to be used in diagram weighting
0051    */
0052   map<LTriple,double>& couplings() { return theCouplings; }
0053
0054   /**
0055    * Couplings to be used in diagram weighting
0056    */
0057   const map<LTriple,double>& couplings() const { return theCouplings; }
0058
0059 public:
0060
0061   /** @name Functions used by the persistent I/O system. */
0062   //@{
0063   /**
0064    * Function used to write out object persistently.
0065    * @param os the persistent output stream written to.
0066    */
0067   void persistentOutput(PersistentOStream & os) const;
0068
0069   /**
0070    * Function used to read in object persistently.
0071    * @param is the persistent input stream read from.
0072    * @param version the version number of the object when written.
0073    */
0074   void persistentInput(PersistentIStream & is, int version);
0075   //@}
0076
0077   /**
0078    * The standard Init function used to initialize the interfaces.
0079    * Called exactly once for each class by the class description system
0080    * before the main function starts or
0081    * when this class is dynamically loaded.
0082    */
0083   static void Init();
0084
0085 protected:
0086
0087   /** @name Clone Methods. */
0088   //@{
0089   /**
0090    * Make a simple clone of this object.
0091    * @return a pointer to the new object.
0092    */
0093   virtual IBPtr clone() const;
0094
0095   /** Make a clone of this object, possibly modifying the cloned object
0096    * to make it sane.
0097    * @return a pointer to the new object.
0098    */
0099   virtual IBPtr fullclone() const;
0100   //@}
0101
0102
0103 // If needed, insert declarations of virtual function defined in the
0104 // InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
0105
0106
0107 private:
0108
0109   /**
0110    * Couplings to be used in diagram weighting
0111    */
0112   map<LTriple,double> theCouplings;
0113
0114   /**
0115    * The assignment operator is private and must never be called.
0116    * In fact, it should not even be implemented.
0117    */
0118   PhasespaceCouplings & operator=(const PhasespaceCouplings &) = delete;
0119
0120 };
0121
0122 }
0123
0124 #endif /* Herwig_PhasespaceCouplings_H */