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DrellYanPT.h
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// -*- C++ -*-
#ifndef HERWIG_DrellYanPT_H
#define HERWIG_DrellYanPT_H
//
// This is the declaration of the DrellYanPT class.
//
#include "ThePEG/Handlers/AnalysisHandler.h"
#include "Herwig++/Utilities/Histogram.h"
namespace Herwig {
using namespace ThePEG;
/** \ingroup Analysis
*
* This AnalysisHandler books histograms
* of the weak boson's pt in Drell-Yan
* processes.
*
* An Interface switch allows you to choose
* between output of the histograms
* as TopDraw or plain ASCII files, which
* may be processed further, e.g. by gnuplot.
*
* @see \ref DrellYanPTInterfaces "The interfaces"
* defined for DrellYanPT.
*/
class DrellYanPT: public AnalysisHandler {
public:
/**
* The default constructor.
*/
DrellYanPT();
/** @name Virtual functions required by the AnalysisHandler class. */
//@{
/**
* Analyze a given Event. Note that a fully generated event
* may be presented several times, if it has been manipulated in
* between. The default version of this function will call transform
* to make a lorentz transformation of the whole event, then extract
* all final state particles and call analyze(tPVector) of this
* analysis object and those of all associated analysis objects. The
* default version will not, however, do anything on events which
* have not been fully generated, or have been manipulated in any
* way.
* @param event pointer to the Event to be analyzed.
* @param ieve the event number.
* @param loop the number of times this event has been presented.
* If negative the event is now fully generated.
* @param state a number different from zero if the event has been
* manipulated in some way since it was last presented.
*/
virtual void analyze(tEventPtr event, long ieve, int loop, int state);
//@}
public:
/**
* 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 {return new_ptr(*this);}
/** 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 {return new_ptr(*this);}
//@}
protected:
/** @name Standard Interfaced functions. */
//@{
/**
* Finalize this object. Called in the run phase just after a
* run has ended. Used eg. to write out statistics.
*/
virtual void dofinish();
//@}
private:
/**
* Histogram of the Z's pt
*/
Histogram _Zpt;
/**
* Histogram of the W+'s pt
*/
Histogram _Wppt;
/**
* Histogram of the W-'s pt
*/
Histogram _Wmpt;
/**
* The static object used to initialize the description of this class.
* Indicates that this is a concrete class with persistent data.
*/
static NoPIOClassDescription<DrellYanPT> initDrellYanPT;
/**
* The assignment operator is private and must never be called.
* In fact, it should not even be implemented.
*/
DrellYanPT & operator=(const DrellYanPT &);
};
}
#include "ThePEG/Utilities/ClassTraits.h"
namespace ThePEG {
/** @cond TRAITSPECIALIZATIONS */
/** This template specialization informs ThePEG about the
* base classes of DrellYanPT. */
template <>
struct BaseClassTrait<Herwig::DrellYanPT,1> {
/** Typedef of the first base class of DrellYanPT. */
typedef AnalysisHandler NthBase;
};
/** This template specialization informs ThePEG about the name of
* the DrellYanPT class and the shared object where it is defined. */
template <>
struct ClassTraits<Herwig::DrellYanPT>
: public ClassTraitsBase<Herwig::DrellYanPT> {
/** Return a platform-independent class name */
static string className() { return "Herwig::DrellYanPT"; }
/**
* The name of a file containing the dynamic library where the class
* DrellYanPT is implemented. It may also include several, space-separated,
* libraries if the class DrellYanPT depends on other classes (base classes
* excepted). In this case the listed libraries will be dynamically
* linked in the order they are specified.
*/
static string library() { return "HwAnalysis.so"; }
};
/** @endcond */
}
#endif /* HERWIG_DrellYanPT_H */

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