SimpleSVDStateFilter.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 <tracking/ckf/svd/filters/states/BaseSVDStateFilter.h>
#include <tracking/ckf/svd/utilities/SVDKalmanStepper.h>
 
namespace Belle2 {
  class SimpleSVDStateFilter : public BaseSVDStateFilter {
  public:
    void beginRun() final;
 
    SimpleSVDStateFilter() = default;
 
    TrackFindingCDC::Weight operator()(const BaseSVDStateFilter::Object& pair) final;
 
  private:
    double m_cachedBField;
 
    SVDKalmanStepper m_kalmanStepper;
 
    using MaximalValueArray = double[4][3];
 
    static constexpr const MaximalValueArray m_param_maximumHelixDistance = {
      // high pt, middle pt, low pt
      {1.38532, 1.44346, 1.53386}, // layer 3
      {1.96701, 2.17819, 2.19784}, // layer 4
      {2.33064, 2.67768, 2.67174}, // layer 5
      {6, 6, 6}, // layer 6
    };
 
    static constexpr const MaximalValueArray m_param_maximumResidual = {
      {1.52328, 1.57714, 1.63069}, // layer 3
      {1.61301, 1.78301, 1.75973}, // layer 4
      {1.85188, 2.19571, 2.38167}, // layer 5
      {5.5, 5, 5}, // layer 6
    };
 
    static constexpr const MaximalValueArray m_param_maximumResidual2 = {
      {0.69713, 0.39872, 0.41854}, // layer 3
      {0.72737, 0.40816, 0.53138}, // layer 4
      {0.35624, 0.12846, 0.22516}, // layer 5
      {0.00975, 0.06432, 0.5969}, // layer 6
    };
 
  };
}