MHTFex.h

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/*
 * Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
 */
 
/******************************************************************************
 * @package Trigger/TrigAlgorithms/TrigEFMissingET
 * @class   MHTFex
 *
 * @brief Fex class for the basic mht algorithm
 * @author Jon Burr
 *****************************************************************************/
 
#ifndef TRIGEFMISSINGET_MHTFEX_H
#define TRIGEFMISSINGET_MHTFEX_H
 
#include "FexBase.h"
#include "xAODJet/JetContainer.h"
 
namespace HLT { namespace MET {
  /****************************************************************************
   * @class MHTFex
   *
   * Class to create output from the mht algorithm
   *
   * mht calculates the MET with a sum over trigger-level jets.
   ***************************************************************************/
  class MHTFex : public FexBase
  {
    public:
      MHTFex(const std::string& name, ISvcLocator* pSvcLocator);

      virtual StatusCode initialize() override;
 
    private:
      /************************************************************************
       * Properties
       ***********************************************************************/
      SG::ReadHandleKey<xAOD::JetContainer> m_jetKey{
        this, "JetName", "jets", "Input jet colleciton"};

      Gaudi::Property<float> m_etaSeparation{
        this, "EtaSeparation", 2.4,
        "Selection on |eta| to separate the central and forward regions"};

      Gaudi::Property<float> m_centralPtCut{
        this, "CentralPtCut", 0, "pT cut for central jets"};

      Gaudi::Property<float> m_forwardPtCut{
        this, "ForwardPtCut", 0, "pT cut for forward jets"};
 
      /************************************************************************
       * Internal functions
       ***********************************************************************/
      virtual StatusCode fillMET(
          xAOD::TrigMissingET& met,
          const EventContext& context,
          MonGroupBuilder& monitors) const override;

      inline bool isCentral(const xAOD::Jet* ijet) const
      { return std::abs(ijet->eta() ) < m_etaSeparation; }
  }; //> end class MHTFex
} } //> end namespace HLT::MET
 
#endif //> !TRIGEFMISSINGET_MHTFEX_H