TrackPtKick.h

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// $Id: TrackPtKick.h,v 1.1 2005/05/25 15:40:12 cattanem Exp $
#ifndef TRACKTOOLS_TRACKPTKICK_H 
#define TRACKTOOLS_TRACKPTKICK_H 1

// Include files
// -------------
// from Gaudi
#include "GaudiAlg/GaudiTool.h"

// from TrackInterfaces
#include "TrackInterfaces/ITrackPtKick.h"            // Interface
#include "TrackInterfaces/IBIntegrator.h"

class TrackPtKick : public GaudiTool, virtual public ITrackPtKick {
public: 
  TrackPtKick( const std::string& type, 
               const std::string& name,
               const IInterface* parent);

  virtual ~TrackPtKick( ); 

  StatusCode initialize();

  // Estimate the momentum P of a State
  virtual StatusCode calculate( State* State ) const;

protected:

private:
  void determineFieldPolarity();

  IBIntegrator* m_bIntegrator;

  int m_FieldPolarity;
  
  double m_MomentumError;
  std::vector<double> m_ParabolicCorrection;
  double m_Constant;

};
#endif // TRACKTOOLS_TRACKPTKICK_H

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