KinematicHistAlg.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/

 
 
#ifndef ASG_ANALYSIS_ALGORITHMS__KINEMATIC_HIST_ALG_H
#define ASG_ANALYSIS_ALGORITHMS__KINEMATIC_HIST_ALG_H
 
#include <AnaAlgorithm/AnaAlgorithm.h>
#include <SelectionHelpers/SysReadSelectionHandle.h>
#include <SystematicsHandles/SysReadHandle.h>
#include <SystematicsHandles/SysListHandle.h>
#include <xAODBase/IParticleContainer.h>
#include <AsgTools/PropertyWrapper.h>
 
namespace CP
{
 
  class KinematicHistAlg final : public EL::AnaAlgorithm
  {
  public:
    using EL::AnaAlgorithm::AnaAlgorithm;
    StatusCode initialize () override;
    StatusCode execute (const EventContext& ctx) override;
 

  private:
    SysListHandle m_systematicsList {this};

  private:
    SysReadHandle<xAOD::IParticleContainer> m_inputHandle {
      this, "input", "", "the input collection to run on"};

  private:
    SysReadSelectionHandle m_preselection {
      this, "preselection", "", "the preselection to apply"};

  private:
    Gaudi::Property<std::string> m_histPattern {this, "histPattern", "%VAR%_%SYS%", "the pattern for histogram names"};
 

  private:
    struct HistSubgroup
    {
      TH1 *pt = nullptr;
      TH1 *eta = nullptr;
      TH1 *phi = nullptr;
    };
 

  private:
    struct HistGroup
    {
      TH1 *multiplicity = nullptr;
      std::vector<HistSubgroup> perObject;
    };

  private:
    std::unordered_map<CP::SystematicSet,HistGroup> m_hist;
  };
}
 
#endif