/usr/include/ThePEG/Handlers/StdXCombGroup.h is in libthepeg-dev 1.8.0-1.1.
This file is owned by root:root, with mode 0o644.
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//
// StdXCombGroup.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2007 Leif Lonnblad
// Copyright (C) 2009-2010 Simon Platzer
//
// 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_StdXCombGroup_H
#define ThePEG_StdXCombGroup_H
// This is the declaration of the StdXCombGroup class.
#include "StandardXComb.h"
#include "StdDependentXComb.h"
#include "StdXCombGroup.fh"
#include "ThePEG/MatrixElement/MEGroup.fh"
namespace ThePEG {
/**
* The StdXCombGroup class represents a 'head' XComb object
* in association with a group of dependent XComb objects.
*
* @see StdDependendXComb
* @see MEGroup
*/
class StdXCombGroup: public StandardXComb {
/** MEBase needs to be a friend. */
friend class MEBase;
public:
/** @name Standard constructors and destructors. */
//@{
/**
* Standard constructor.
*/
StdXCombGroup(Energy newMaxEnergy, const cPDPair & inc,
tEHPtr newEventHandler,tSubHdlPtr newSubProcessHandler,
tPExtrPtr newExtractor, tCascHdlPtr newCKKW,
const PBPair & newPartonBins, tCutsPtr newCuts, tMEGroupPtr newME,
const DiagramVector & newDiagrams, bool mir);
/**
* Default constructor.
*/
StdXCombGroup();
/**
* Destructor.
*/
virtual ~StdXCombGroup();
public:
/**
* Generate a phase space point from a vector \a r of \a nr numbers
* in the interval ]0,1[ and return the corresponding differential
* cross section.
*/
virtual CrossSection dSigDR(const pair<double,double> ll, int nr, const double * r);
/**
* Return the cross section calculated from the head matrix element
*/
CrossSection lastHeadCrossSection() const { return theLastHeadCrossSection; }
/**
* Visit the dependent XComb objects
*/
const StdDepXCVector& dependent() const { return theDependent; }
/**
* Return the matrix element group steered by this
* XComb group.
*/
tcMEGroupPtr meGroup() const { return theMEGroup; }
/**
* Initialize this XComb group
*/
void build(const PartonPairVec& allPBins);
/**
* Construct a sub-process object from the information available.
*/
virtual tSubProPtr construct();
protected:
/**
* Construct the corresponding SubProcess object if it hasn't been
* done before.
*/
virtual void newSubProcess(bool);
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:
/**
* Set the cross section calculated from the head matrix element
*/
void lastHeadCrossSection(CrossSection xs) { theLastHeadCrossSection = xs; }
private:
/**
* The MEGroup object
*/
MEGroupPtr theMEGroup;
/**
* The dependent XComb objects
*/
StdDepXCVector theDependent;
/**
* The cross section calculated from the head matrix element
*/
CrossSection theLastHeadCrossSection;
private:
/**
* Describe a concrete class with persistent data.
*/
static ClassDescription<StdXCombGroup> initStdXCombGroup;
/**
* Private and non-existent assignment operator.
*/
StdXCombGroup & operator=(const StdXCombGroup &);
};
/** @cond TRAITSPECIALIZATIONS */
/**
* This template specialization informs ThePEG about the base class of
* StdXCombGroup.
*/
template <>
struct BaseClassTrait<StdXCombGroup,1> {
/** Typedef of the base class of StdXCombGroup. */
typedef StandardXComb NthBase;
};
/**
* This template specialization informs ThePEG about the name of the
* StdXCombGroup class.
*/
template <>
struct ClassTraits<StdXCombGroup>:
public ClassTraitsBase<StdXCombGroup> {
/** Return the class name. */
static string className() { return "ThePEG::StdXCombGroup"; }
};
/** @endcond */
}
#endif /* ThePEG_StdXCombGroup_H */
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