VXDDedxPIDModule.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/core/Module.h>
#include <framework/gearbox/Const.h>
#include <framework/datastore/StoreArray.h>
 
#include <reconstruction/dataobjects/VXDDedxTrack.h>
#include <reconstruction/dataobjects/VXDDedxLikelihood.h>
#include <reconstruction/dataobjects/DedxConstants.h>
 
#include <mdst/dataobjects/Track.h>
#include <mdst/dataobjects/MCParticle.h>
#include <tracking/dataobjects/RecoTrack.h>
#include <svd/dataobjects/SVDCluster.h>
#include <pxd/dataobjects/PXDCluster.h>
 
#include <framework/database/DBObjPtr.h>
#include <svd/dbobjects/SVDdEdxPDFs.h>
#include <pxd/dbobjects/PXDdEdxPDFs.h>
 
#include <vector>
 
 
namespace Belle2 {
  class HelixHelper;

  class VXDDedxPIDModule : public Module {
 
  public:

    VXDDedxPIDModule();

    virtual ~VXDDedxPIDModule();

    virtual void initialize() override;

    virtual void event() override;

    virtual void terminate() override;
 
  private:

    void checkPDFs();

    void calculateMeans(double& mean, double& truncatedMean, double& truncatedMeanErr, const std::vector<double>& dedx) const;

    template <class HitClass> static double getTraversedLength(const HitClass* hit, const RecoTrack* recoTrack, double& p);

    template <class HitClass> void saveSiHits(VXDDedxTrack* track, const std::vector<HitClass*>& hits,
                                              const RecoTrack* recoTrack) const;
 
    // module steering parameters
    bool m_useIndividualHits; 
    bool m_usePXD; 
    bool m_useSVD; 
    bool m_onlyPrimaryParticles; 
 
    // required input
    StoreArray<Track> m_tracks; 
    StoreArray<RecoTrack> m_recoTracks; 
 
    // optional input
    StoreArray<MCParticle> m_mcparticles; 
    StoreArray<SVDCluster> m_svdClusters; 
    StoreArray<PXDCluster> m_pxdClusters; 
 
    // output
    StoreArray<VXDDedxTrack> m_dedxTracks; 
    StoreArray<VXDDedxLikelihood> m_dedxLikelihoods; 
 
    // PDF's for PID
    DBObjPtr<SVDdEdxPDFs> m_SVDDedxPDFs; 
    DBObjPtr<PXDdEdxPDFs> m_PXDDedxPDFs; 
 
    // other
    int m_eventID; 
    int m_trackID; 
 
  };

} // Belle2 namespace