/usr/include/ThePEG/Cuts/NLOKTJetFinder.h is in libthepeg-dev 1.8.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// NLOKTJetFinder.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 1999-2007 Leif Lonnblad
// Copyright (C) 2009-2011 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_NLOKTJetFinder_H
#define THEPEG_NLOKTJetFinder_H
//
// This is the declaration of the NLOKTJetFinder class.
//
#include "ThePEG/Cuts/JetFinder.h"
namespace ThePEG {
/**
* NLOKTJetFinder implements the class of longitudinally invariant kt
* jet clustering algorithms, as relevant for cuts on the real
* emission contribution to a NLO calculation. Recombination is
* exclusively performed using the pt scheme.
*
* @see \ref NLOKTJetFinderInterfaces "The interfaces"
* defined for NLOKTJetFinder.
*/
class NLOKTJetFinder: public JetFinder {
public:
/** @name Standard constructors and destructors. */
//@{
/**
* The default constructor.
*/
NLOKTJetFinder();
/**
* The destructor.
*/
virtual ~NLOKTJetFinder();
//@}
public:
/**
* Perform jet clustering on the given outgoing particles.
* Optionally, information on the incoming particles is provided.
* Return true, if a clustering has been performed.
*/
virtual bool cluster(tcPDVector & ptype, vector<LorentzMomentum> & p,
tcCutsPtr parent, tcPDPtr t1 = tcPDPtr(),
tcPDPtr t2 = tcPDPtr()) const;
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;
//@}
// If needed, insert declarations of virtual function defined in the
// InterfacedBase class here (using ThePEG-interfaced-decl in Emacs).
private:
/**
* Perform pt scheme recombination.
*/
LorentzMomentum recombine(const LorentzMomentum& pi,
const LorentzMomentum& pj) const;
private:
/**
* The resolution cut. Ignored, if algorithm is to act inclusively.
*/
Energy2 theDCut;
/**
* The `cone radius' R. Ignored (R=1), if algorithm is to act
* exclusively.
*/
double theConeRadius;
/**
* The possible variants.
*/
enum variants {
kt = 1,
ca = 2,
antikt = 3
};
/**
* The variant.
*/
int theVariant;
/**
* The possible modes.
*/
enum modes {
inclusive = 1,
exclusive = 2
};
/**
* The mode.
*/
int theMode;
/**
* The possible measures. Also triggers the choice of recombination
* scheme by default.
*/
enum measures {
pt = 1,
e = 2
};
/**
* The measure
*/
int theMeasure;
/**
* The possible recombination schemes.
*/
enum recombinations {
recoDefault = 1,
recoPt = 2,
recoE = 3
};
/**
* The recombination scheme
*/
int theRecombination;
/**
* Choose to not consider partons as jets which are out of in terms
* or rapidity or transverse momentum
*/
bool theRemoveOutOfRange;
private:
/**
* The assignment operator is private and must never be called.
* In fact, it should not even be implemented.
*/
NLOKTJetFinder & operator=(const NLOKTJetFinder &);
};
}
#endif /* THEPEG_NLOKTJetFinder_H */
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