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 /*
  * This file is part of KFParticle package
  * Copyright (C) 2007-2019 FIAS Frankfurt Institute for Advanced Studies
  *               2007-2019 Goethe University of Frankfurt
  *               2007-2019 Ivan Kisel <I.Kisel@compeng.uni-frankfurt.de>
  *               2007-2019 Maksym Zyzak
  *
  * KFParticle is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
  * KFParticle is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef KFPARTICLESPHENIX_KFPARTICLESPHENIX_H
 #define KFPARTICLESPHENIX_KFPARTICLESPHENIX_H
 
 #include "KFParticle_eventReconstruction.h"
 
 // There is something broken in this package. clang format puts
 // #include "KFParticle_DST.h" first if there is no space but then
 // loading KFParticle makes root barf. I have no time to track this down
 // right now, it must be something in KFParticle_eventReconstruction.h and
 // the include files it uses (some include guard misfiring?)
 
 #include "KFParticle_DST.h"
 #include "KFParticle_nTuple.h"
 
 // sPHENIX stuff
 #include <fun4all/SubsysReco.h>
 
 // KFParticle stuff
 #include <KFParticle.h>
 
 #include <algorithm>  // for max
 #include <memory>     // for allocator_traits<>::valu...
 #include <string>
 #include <utility>  // for pair
 #include <vector>   // for vector
 
 class PHCompositeNode;
 class TFile;
 
 class KFParticle_sPHENIX : public SubsysReco, public KFParticle_nTuple, public KFParticle_DST, protected KFParticle_eventReconstruction
 {
  public:
   KFParticle_sPHENIX();
 
   explicit KFParticle_sPHENIX(const std::string &name);
 
   ~KFParticle_sPHENIX() override = default;
 
   int Init(PHCompositeNode *topNode) override;
 
   int InitRun(PHCompositeNode *topNode) override;
 
   int process_event(PHCompositeNode *topNode) override;
 
   int End(PHCompositeNode *topNode) override;
 
   /**
    * If verbosity is > 0, this will print out all candidate information:
    * masses, momenta and positions for mothers, intermediates and final state tracks,
    * PV position, number of vertices and number of tracks in the event (multiplicity)
    */
   void printParticles(const KFParticle &motherParticle,
                       const KFParticle &chosenVertex,
                       const std::vector<KFParticle> &daughterParticles,
                       const std::vector<KFParticle> &intermediateParticles,
                       const int numPVs, const int numTracks);
 
   int parseDecayDescriptor();
 
   /// Parameters for the user to vary
 
   void setDecayDescriptor(const std::string &decayDescriptor) { m_decayDescriptor = decayDescriptor; }
 
   static const int max_particles = 99;
 
   void setMotherName(const std::string &mother_name)
   {
     m_mother_name = mother_name;
     m_mother_name_Tools = mother_name;
   }
 
   void hasIntermediateStates(bool has_intermediates = true)
   {
     m_has_intermediates = has_intermediates;
     m_has_intermediates_nTuple = has_intermediates;
     m_has_intermediates_sPHENIX = has_intermediates;
     m_has_intermediates_DST = has_intermediates;
   }
 
   void setNumberOfTracks(int num_tracks)
   {
     m_num_tracks = num_tracks;
     m_num_tracks_nTuple = num_tracks;
   }
 
   void setNumberTracksFromIntermeditateState(const std::vector<int> &num_tracks)
   {
     for (unsigned int i = 0; i < num_tracks.size(); ++i)
     {
       m_num_tracks_from_intermediate.push_back(num_tracks[i]);
       m_num_tracks_from_intermediate_nTuple.push_back(num_tracks[i]);
     }
   }
 
   void setNumberOfIntermediateStates(int n_intermediates)
   {
     m_num_intermediate_states = n_intermediates;
     m_num_intermediate_states_nTuple = n_intermediates;
   }
 
   void getChargeConjugate(bool get_charge_conjugate = true)
   {
     m_get_charge_conjugate_nTuple = get_charge_conjugate;
     m_get_charge_conjugate = get_charge_conjugate;
   }
 
   void setDaughters(std::vector<std::pair<std::string, int>> &daughter_list)
   {
     for (unsigned int i = 0; i < daughter_list.size(); ++i)
     {
       m_daughter_name.push_back(daughter_list[i].first);
       m_daughter_charge.push_back(daughter_list[i].second);
     }
   }
 
   void setIntermediateStates(const std::vector<std::pair<std::string, int>> &intermediate_list)
   {
     for (unsigned int i = 0; i < intermediate_list.size(); ++i)
     {
       m_intermediate_name_ntuple.push_back(intermediate_list[i].first);
       m_intermediate_name.push_back(intermediate_list[i].first);
       m_intermediate_charge.push_back(intermediate_list[i].second);
     }
   }
 
   void setMinimumMass(float min_mass) { m_min_mass = min_mass; }
 
   void setMaximumMass(float max_mass) { m_max_mass = max_mass; }
 
   void setDecayTimeRange_XY(float min_decayTime, float max_decayTime)
   {
     m_min_decayTime_xy = min_decayTime;
     m_max_decayTime_xy = max_decayTime;
   }
 
   void setDecayLengthRange_XY(float min_decayLength, float max_decayLength)
   {
     m_min_decayLength_xy = min_decayLength;
     m_max_decayLength_xy = max_decayLength;
   }
 
   void setDecayTimeRange(float min_decayTime, float max_decayTime)
   {
     m_min_decayTime = min_decayTime;
     m_max_decayTime = max_decayTime;
   }
 
   void setDecayLengthRange(float min_decayLength, float max_decayLength)
   {
     m_min_decayLength = min_decayLength;
     m_max_decayLength = max_decayLength;
   }
 
   void setMinDecayTimeSignificance(float min = 0) { m_mother_min_decay_time_significance = min; }
 
   void setMinDecayLengthSignificance(float min = 0) { m_mother_min_decay_length_significance = min; }
 
   void setMinDecayLengthSignificance_XY(float min = 0) { m_mother_min_decay_length_xy_significance = min; }
 
   void setMinimumTrackPT(float pt) { m_track_min_pt = pt; }
 
   void setMaximumTrackPT(float pt) { m_track_max_pt = pt; }
 
   void setMaximumTrackPTchi2(float ptchi2) { m_track_ptchi2 = ptchi2; }
 
   void setMinimumTrackIP_XY(float ip) { m_track_ip_xy = ip; }
 
   void setMinimumTrackIPchi2_XY(float ipchi2) { m_track_ipchi2_xy = ipchi2; }
 
   void setMinimumTrackIP(float ip) { m_track_ip = ip; }
 
   void setMinimumTrackIPchi2(float ipchi2) { m_track_ipchi2 = ipchi2; }
 
   void setMaximumTrackchi2nDOF(float trackchi2ndof) { m_track_chi2ndof = trackchi2ndof; }
 
   void setMinMVTXhits(int nHits) { m_nMVTXStates = nHits; } //Actually state counting but use this for backwards compatibility!
 
   void setMinINTThits(int nHits) { m_nINTTStates = nHits; } //Actually state counting but use this for backwards compatibility!
 
   void setMinTPChits(int nHits) { m_nTPCStates = nHits; } //Actually state counting but use this for backwards compatibility!
 
   void setMinTPOThits(int nHits) { m_nTPCStates = nHits; } //Actually state counting but use this for backwards compatibility!
 
   void setMaximumDaughterDCA_XY(float dca) { m_comb_DCA_xy = dca; }
 
   void setMaximumDaughterDCA(float dca) { m_comb_DCA = dca; }
  
   void setMinimumRadialSV(float min_rad_sv) { m_min_radial_SV = min_rad_sv; }
 
   void setMaximumVertexchi2nDOF(float vertexchi2nDOF) { m_vertex_chi2ndof = vertexchi2nDOF; }
 
   void setFlightDistancechi2(float fdchi2) { m_fdchi2 = fdchi2; }
 
   void setMinDIRA(float dira_min) { m_dira_min = dira_min; }
 
   void setMaxDIRA(float dira_max) { m_dira_max = dira_max; }
 
   void setMinDIRA_XY(float dira_min) { m_dira_xy_min = dira_min; }
 
   void setMaxDIRA_XY(float dira_max) { m_dira_xy_max = dira_max; }
 
   void setMotherPT(float mother_pt) { m_mother_pt = mother_pt; }
 
   void setMotherIP(float mother_ip) { m_mother_ip = mother_ip; }
 
   void setMotherIP_XY(float mother_ip) { m_mother_ip_xy = mother_ip; }
 
   void setMotherIPchi2(float mother_ipchi2) { m_mother_ipchi2 = mother_ipchi2; }
 
   void setMotherIPchi2_XY(float mother_ipchi2) { m_mother_ipchi2_xy = mother_ipchi2; }
 
   void setMaximumMotherVertexVolume(float vertexvol) { m_mother_vertex_volume = vertexvol; }
 
   void constrainToPrimaryVertex(bool constrain_to_vertex = true)
   {
     m_constrain_to_vertex = constrain_to_vertex;
     m_constrain_to_vertex_nTuple = constrain_to_vertex;
     m_constrain_to_vertex_sPHENIX = constrain_to_vertex;
   }
 
   void useMbdVertex(bool use = true)
   {
     m_use_mbd_vertex = use;
     m_use_mbd_vertex_truth = use;
   }
 
   void dontUseGlobalVertex(bool dont = true) { m_dont_use_global_vertex = m_dont_use_global_vertex_truth  = dont; }
 
   void useFakePrimaryVertex(bool use_fake = true)
   {
     m_use_fake_pv = use_fake;
     m_use_fake_pv_nTuple = use_fake;
   }
 
   void allowZeroMassTracks(bool allow = true) { m_allowZeroMassTracks = allow; }
 
   void extraolateTracksToSV(bool extrapolate = true)
   {
     m_extrapolateTracksToSV = extrapolate;
     m_extrapolateTracksToSV_nTuple = extrapolate;
   }
 
   void constrainIntermediateMasses(bool constrain_int_mass = true) { m_constrain_int_mass = constrain_int_mass; }
 
   void setIntermediateMassRange(const std::vector<std::pair<float, float>> &intermediate_mass_range)
   {
     for (unsigned int i = 0; i < intermediate_mass_range.size(); ++i) m_intermediate_mass_range.push_back(intermediate_mass_range[i]);
   }
 
   void setIntermediateMinPT(const std::vector<float> &intermediate_min_pt)
   {
     m_intermediate_min_pt = intermediate_min_pt;
   }
 
   void setIntermediateMinIP_XY(const std::vector<float> &intermediate_min_IP)
   {
     for (unsigned int i = 0; i < intermediate_min_IP.size(); ++i) m_intermediate_min_ip_xy.push_back(intermediate_min_IP[i]);
   }
 
   void setIntermediateIPRange_XY(const std::vector<std::pair<float, float> /*unused*/> &intermediate_IP_range)
   {
     for (unsigned int i = 0; i < intermediate_IP_range.size(); ++i)
     {
       m_intermediate_min_ip_xy.push_back(intermediate_IP_range[i].first);
       m_intermediate_max_ip_xy.push_back(intermediate_IP_range[i].second);
     }
   }
 
   void setIntermediateMinIP(const std::vector<float> &intermediate_min_IP)
   {
     for (unsigned int i = 0; i < intermediate_min_IP.size(); ++i) m_intermediate_min_ip.push_back(intermediate_min_IP[i]);
   }
 
   void setIntermediateIPRange(const std::vector<std::pair<float, float> /*unused*/> &intermediate_IP_range)
   {
     for (unsigned int i = 0; i < intermediate_IP_range.size(); ++i)
     {
       m_intermediate_min_ip.push_back(intermediate_IP_range[i].first);
       m_intermediate_max_ip.push_back(intermediate_IP_range[i].second);
     }
   }
 
   void setIntermediateMinIPchi2_XY(const std::vector<float> &intermediate_min_IPchi2)
   {
     for (unsigned int i = 0; i < intermediate_min_IPchi2.size(); ++i) m_intermediate_min_ipchi2_xy.push_back(intermediate_min_IPchi2[i]);
   }
 
   void setIntermediateIPchi2Range_XY(const std::vector<std::pair<float, float> /*unused*/> &intermediate_IPchi2_range)
   {
     for (unsigned int i = 0; i < intermediate_IPchi2_range.size(); ++i)
     {
       m_intermediate_min_ipchi2_xy.push_back(intermediate_IPchi2_range[i].first);
       m_intermediate_max_ipchi2_xy.push_back(intermediate_IPchi2_range[i].second);
     }
   }
 
   void setIntermediateMinIPchi2(const std::vector<float> &intermediate_min_IPchi2)
   {
     for (unsigned int i = 0; i < intermediate_min_IPchi2.size(); ++i) m_intermediate_min_ipchi2.push_back(intermediate_min_IPchi2[i]);
   }
 
   void setIntermediateIPchi2Range(const std::vector<std::pair<float, float> /*unused*/> &intermediate_IPchi2_range)
   {
     for (unsigned int i = 0; i < intermediate_IPchi2_range.size(); ++i)
     {
       m_intermediate_min_ipchi2.push_back(intermediate_IPchi2_range[i].first);
       m_intermediate_max_ipchi2.push_back(intermediate_IPchi2_range[i].second);
     }
   }
 
   void setIntermediateMinDIRA(const std::vector<float> &intermediate_min_DIRA)
   {
     for (unsigned int i = 0; i < intermediate_min_DIRA.size(); ++i) m_intermediate_min_dira.push_back(intermediate_min_DIRA[i]);
   }
 
   void setIntermediateMinFDchi2(const std::vector<float> &intermediate_min_FDchi2)
   {
     for (unsigned int i = 0; i < intermediate_min_FDchi2.size(); ++i) m_intermediate_min_fdchi2.push_back(intermediate_min_FDchi2[i]);
   }
 
   void setIntermediateMaxVertexVolume(const std::vector<float> &intermediate_max_vertexvol)
   {
     for (unsigned int i = 0; i < intermediate_max_vertexvol.size(); ++i) m_intermediate_vertex_volume.push_back(intermediate_max_vertexvol[i]);
   }
 
   void use2Dmatching(bool use_2D_matching_tools = true) { m_use_2D_matching_tools = use_2D_matching_tools; }
 
   void useMVA(bool require_mva = true) { m_require_mva = require_mva; }
 
   void setNumMVAPars(unsigned int nPars) { m_nPars = nPars; }
 
   void setMVAVarList(const std::vector<std::string> &mva_variable_list)
   {
     for (unsigned int i = 0; i < mva_variable_list.size(); ++i) m_mva_variable_list.push_back(mva_variable_list[i]);
   }
 
   void setMVAType(const std::string &mva_type) { m_mva_type = mva_type; }
 
   void setMVAWeightsPath(const std::string &mva_weights_path) { m_mva_path = mva_weights_path; }
 
   void setMVACutValue(float cut_value) { m_mva_cut_value = cut_value; }
 
   void saveDST(bool save = true) { m_save_dst = save; }
 
   void saveTrackContainer(bool save = true) { m_write_track_container = save; }
 
   void saveParticleContainer(bool save = true) { m_write_particle_container = save; }
 
   void setContainerName(const std::string &name) { m_container_name = name; }
 
   void saveOutput(bool save = true) { m_save_output = save; }
 
   void setOutputName(const std::string &name) { m_outfile_name = name; }
 
   void doTruthMatching(bool truth = true) { m_truth_matching = truth; }
 
   void getTriggerInfo(bool get = true) { m_get_trigger_info = get; }
 
   void getDetectorInfo(bool detinfo = true) { m_detector_info = detinfo; }
 
   void getCaloInfo(bool caloinfo = true) { m_calo_info = caloinfo; }
 
   void requireTrackEMCalMatch(bool require = true) { m_require_track_emcal_match = require; }
 
   void getAllPVInfo(bool pvinfo = true) { m_get_all_PVs = pvinfo; }
 
   void bunchCrossingZeroOnly(bool bcZeroOnly = true) { m_bunch_crossing_zero_only = bcZeroOnly; }
 
   void requireBunchCrossingMatch(bool require = true) { m_require_bunch_crossing_match = require; }
 
   void requireTrackVertexBunchCrossingMatch(bool require = true) { m_require_track_and_vertex_match = require; }
 
   void selectMotherByMassError(bool select = true) { m_select_by_mass_error = select; }
 
   void usePID(bool use = true){ m_use_PID = use; }
  
   void setPIDacceptFraction(float frac = 0.2){ m_dEdx_band_width = frac; }
 
   /// Use alternate vertex and track fitters
   void setVertexMapNodeName(const std::string &vtx_map_node_name) { m_vtx_map_node_name = m_vtx_map_node_name_nTuple = vtx_map_node_name; }
 
   /// Use alternate vertex and track fitters
   void setTrackMapNodeName(const std::string &trk_map_node_name) { m_trk_map_node_name = m_trk_map_node_name_nTuple = m_origin_track_map_node_name = trk_map_node_name; }
 
   void magFieldFile(const std::string &fname) { m_magField = fname; }
 
   void getField();
 
   void incrementCandidateCounter(){ candidateCounter += 1; }
   void setCandidateCounter(int countNum) { candidateCounter = countNum; }
   int getCandidateCounter() { return candidateCounter; }
 
  private:
   bool m_has_intermediates_sPHENIX;
   bool m_constrain_to_vertex_sPHENIX;
   bool m_require_mva;
   bool m_save_dst;
   bool m_save_output;
   int candidateCounter = 0;
   std::string m_outfile_name;
   TFile *m_outfile;
   std::string m_decayDescriptor;
   std::string m_magField = "FIELDMAP_TRACKING";
 };
 
 #endif  // KFPARTICLESPHENIX_KFPARTICLESPHENIX_H

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