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BranchingRatioReweighter.h
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BranchingRatioReweighter.h
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// -*- C++ -*-
#ifndef Herwig_BranchingRatioReweighter_H
#define Herwig_BranchingRatioReweighter_H
//
// This is the declaration of the BranchingRatioReweighter class.
//
#include "ThePEG/Handlers/StepHandler.h"
namespace Herwig {
using namespace ThePEG;
/**
* \ingroup Decay
* The BranchingRatioReweighter class is designed to reweight events
* where some decay modes of a particle, or many particles, have been
* switched off in order to improve the statistics.
*
* @see \ref BranchingRatioReweighterInterfaces "The interfaces"
* defined for BranchingRatioReweighter.
*/
class BranchingRatioReweighter: public StepHandler {
public:
/** @name Standard constructors and destructors. */
//@{
/**
* The default constructor.
*/
BranchingRatioReweighter();
/**
* The destructor.
*/
virtual ~BranchingRatioReweighter();
//@}
public:
/** @name Virtual functions required by the StepHandler class. */
//@{
/**
* The main function called by the EventHandler class to
* perform a step. Given the current state of an Event, this function
* performs the event generation step and includes the result in a new
* Step object int the Event record.
* @param eh the EventHandler in charge of the Event generation.
* @param tagged if not empty these are the only particles which should
* be considered by the StepHandler.
* @param hint a Hint object with possible information from previously
* performed steps.
* @throws Veto if the StepHandler requires the current step to be discarded.
* @throws Stop if the generation of the current Event should be stopped
* after this call.
* @throws Exception if something goes wrong.
*/
virtual void handle(EventHandler & eh, const tPVector & tagged,
const Hint & hint);
//@}
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;
/** 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;
//@}
private:
/**
* The assignment operator is private and must never be called.
* In fact, it should not even be implemented.
*/
BranchingRatioReweighter & operator=(const BranchingRatioReweighter &);
};
}
#endif /* Herwig_BranchingRatioReweighter_H */

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