BkgNeutronWeight.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2010 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributor: Leo Piilonen                                              *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
 
#ifndef BKGNEUTRONWEIGHT_H
#define BKGNEUTRONWEIGHT_H
 
#include <vector>
 
namespace Belle2 {
  class BkgNeutronWeight {
 
  public:
 
    static BkgNeutronWeight& getInstance();
 
    double getWeight(double ke);
 
  private:
 
    BkgNeutronWeight(void);
 
    void addPoint(double, double);
 
    void doSpline();
 
    int m_n;
 
    std::vector<double> m_x;
 
    std::vector<double> m_y;
 
    std::vector<double> m_b;
 
    std::vector<double> m_c;
 
    std::vector<double> m_d;
 
    static BkgNeutronWeight* m_Instance;
 
  };
 
} // end of namespace Belle2
 
#endif // BKGNEUTRONWEIGHT_H