/usr/include/ThePEG/Handlers/SubProcessHandler.h is in libthepeg-dev 1.8.0-3build1.
This file is owned by root:root, with mode 0o644.
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//
// SubProcessHandler.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2011 Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef ThePEG_SubProcessHandler_H
#define ThePEG_SubProcessHandler_H
// This is the declaration of the SubProcessHandler class.
#include "ThePEG/Config/ThePEG.h"
#include "ThePEG/Utilities/Interval.h"
#include "ThePEG/Handlers/HandlerGroup.h"
#include "ThePEG/Handlers/HandlerBase.h"
#include "ThePEG/MatrixElement/MEBase.fh"
#include "ThePEG/Cuts/Cuts.fh"
#include "SubProcessHandler.fh"
namespace ThePEG {
/**
* The SubProcessHandler class is used to handle a set of MEBase
* objects together with a PartonExtractor. It is used by the
* StandardEventHandler to group together different ways of extracting
* partons from incoming particles with associated hard parton-parton
* matrix elements.
*
* Just as the EventHandler class, a SubProcessHandler keeps a full
* set of <code>HandlerGroup</code>s, which may be filled with
* defaults which overrides the ones specified in the EventHandler in
* each event the SubProcessHandler is chosen.
*
* The SubProcessHandler has also a Cuts object which is
* responsible for restricting the kinematics of the sub-process and
* produced collision. This object takes precedence over the one in
* the EventHandler in each event the SubProcessHandler is chosen.
*
* @see \ref SubProcessHandlerInterfaces "The interfaces"
* defined for SubProcessHandler.
* @see MEBase
* @see PartonExtractor
* @see EventHandler
* @see StandardEventHandler
* @see HandlerGroup
* @see Cuts
*/
class SubProcessHandler: public HandlerBase {
public:
/** A vector of HandlerGroup pointers. */
typedef vector<HandlerGroupBase *> GroupVector;
/** A vector of ReweightBase pointers. */
typedef vector<ReweightPtr> ReweightVector;
public:
/** @name Standard constructors and destructors. */
//@{
/**
* Default constructor.
*/
SubProcessHandler();
/**
* Copy-constructor.
*/
SubProcessHandler(const SubProcessHandler &);
/**
* Default destructor.
*/
virtual ~SubProcessHandler();
//@}
public:
/** @name Access objects assigned to the SubProcessHandler. */
//@{
/**
* Return a pointer to the parton extractor used.
*/
tPExtrPtr pExtractor() const { return thePartonExtractor; }
/**
* Return a reference to the vector of parton matrix elements used.
*/
const MEVector & MEs() const { return theMEs; }
/**
* Return a pointer to the kinematical cuts used.
*/
tCutsPtr cuts() const { return theCuts; }
/**
* Return a pointer (possibly null) to the assigned main
* CascadeHandler to be used as CKKW-reweighter.
*/
tCascHdlPtr CKKWHandler() const;
/**
* Access a step handler group.
*/
const HandlerGroupBase & handlerGroup(Group::Handler) const;
/**
* Access the step handler groups.
*/
const GroupVector & groups() const { return theGroups; }
/**
* Return a reference to the vector of parton matrix elements used.
*/
MEVector & MEs() { return theMEs; }
//@}
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 interface.
*/
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;
//@}
/** @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();
/**
* Initialize this object. Called in the run phase just before
* a run begins.
*/
virtual void doinitrun();
//@}
private:
/**
* Setup the step handler groups.
*/
void setupGroups();
private:
/**
* The pointer to the parton extractor used.
*/
PExtrPtr thePartonExtractor;
/**
* The vector of partonic matrix elements to be used.
*/
MEVector theMEs;
/**
* The pointer to the kinematical cuts used.
*/
CutsPtr theCuts;
/**
* The SubProcessHandler group.
*/
HandlerGroup<SubProcessHandler> theSubprocessGroup;
/**
* The CascadeHandler group.
*/
HandlerGroup<CascadeHandler> theCascadeGroup;
/**
* The MultipleInteractionHandler group.
*/
HandlerGroup<MultipleInteractionHandler> theMultiGroup;
/**
* The HadronizationHandler group.
*/
HandlerGroup<HadronizationHandler> theHadronizationGroup;
/**
* The DecayHandler group.
*/
HandlerGroup<DecayHandler> theDecayGroup;
/**
* The step handler groups.
*/
GroupVector theGroups;
/**
* The pre- and re-weight objects modifying all matrix element in
* this sub-process hander.
*/
ReweightVector reweights;
/**
* The pre- and re-weight objects modifying all matrix element in
* this sub-process hander.
*/
ReweightVector preweights;
private:
ThePEG_DECLARE_PREPOST_GROUP(SubProcessHandler,Post);
ThePEG_DECLARE_GROUPINTERFACE(CascadeHandler,CascHdlPtr);
ThePEG_DECLARE_GROUPINTERFACE(MultipleInteractionHandler,MIHdlPtr);
ThePEG_DECLARE_GROUPINTERFACE(HadronizationHandler,HadrHdlPtr);
ThePEG_DECLARE_GROUPINTERFACE(DecayHandler,DecayHdlPtr);
/**
* Describe a concreta class with persistent data.
*/
static ClassDescription<SubProcessHandler> initSubProcessHandler;
private:
/**
* Private and non-existent assignment operator.
*/
const SubProcessHandler & operator=(const SubProcessHandler &);
};
/** @cond TRAITSPECIALIZATIONS */
/** This template specialization informs ThePEG about the
* base classes of SubProcessHandler. */
template <>
struct BaseClassTrait<SubProcessHandler,1>: public ClassTraitsType {
/** Typedef of the first base class of SubProcessHandler. */
typedef HandlerBase NthBase;
};
/** This template specialization informs ThePEG about the name of
* the SubProcessHandler class and the shared object where it is defined. */
template <>
struct ClassTraits<SubProcessHandler>:
public ClassTraitsBase<SubProcessHandler> {
/** Return a platform-independent class name */
static string className() { return "ThePEG::SubProcessHandler"; }
};
/** @endcond */
}
#endif /* ThePEG_SubProcessHandler_H */
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