ECLTimingUtilities.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
#include <framework/database/DBObjPtr.h>
#include <ecl/dbobjects/ECLTimeWalkCorrection.h>
 
namespace Belle2 {
  namespace ECL {
    class ECLTimingUtilities {
 
    public:
 
      ECLTimingUtilities(bool required = true);
 
 
      double energyDependentTimeOffsetElectronic(const double amplitude) const;
 
 
      void setLoadFromDatabase(bool flag)
      {
        m_loadFromDB = flag;
      }
 
      void setTimeWalkFuncParams(const double p0, const double p1, const double p2, const double p3, const double p4, const double p5)
      {
        energyDependenceTimeOffsetFitParam_p0 = p0;
        energyDependenceTimeOffsetFitParam_p1 = p1;
        energyDependenceTimeOffsetFitParam_p2 = p2;
        energyDependenceTimeOffsetFitParam_p3 = p3;
        energyDependenceTimeOffsetFitParam_p4 = p4;
        energyDependenceTimeOffsetFitParam_p5 = p5;
      }
 
    private:
 
      // Parameters of the energy dependent time walk function
      //   Default values measured by Alex Kuzmin based on local testpulse calibration
      //   2023.02 Updated to the new version by Alex Bobrov based on Bhabha skim data (exp 24)
      // Note that these are fallback values. By default, new coefficients are loaded from the database.
      double energyDependenceTimeOffsetFitParam_p0 = -1.966 ;      
      double energyDependenceTimeOffsetFitParam_p1 = 46350. ;      
      double energyDependenceTimeOffsetFitParam_p2 = 264600.;      
      double energyDependenceTimeOffsetFitParam_p3 = 1.813  ;      
      double energyDependenceTimeOffsetFitParam_p4 = 7.532  ;      
      double energyDependenceTimeOffsetFitParam_p5 = 428.3  ;      
      bool m_loadFromDB = true; 
      DBObjPtr<ECLTimeWalkCorrection> m_correctionData;
 
    }; // ECLTimingUtilities class
  } // namespace ECL
} // namespace Belle2