HLTDoubletDZ.h

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#ifndef HLTDoubletDZ_h
#define HLTDoubletDZ_h

//
// Class imlements |dZ|<Max for a pair of two objects
//

#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/Common/interface/Ref.h"
#include "DataFormats/HLTReco/interface/TriggerTypeDefs.h"
#include "HLTrigger/HLTcore/interface/HLTFilter.h"
#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "DataFormats/EgammaCandidates/interface/Electron.h"
#include "DataFormats/EgammaCandidates/interface/ElectronFwd.h"

#include<string>
#include<vector>
namespace trigger {
  class TriggerFilterObjectWithRefs;
}

//
// class declaration
//

template<typename T1, typename T2>
class HLTDoubletDZ : public HLTFilter {
  
  typedef std::vector<T1> T1Collection;
  typedef edm::Ref<T1Collection> T1Ref;
  typedef std::vector<T2> T2Collection;
  typedef edm::Ref<T2Collection> T2Ref;
  
 public:
  
  explicit HLTDoubletDZ(const edm::ParameterSet&);
  ~HLTDoubletDZ();
  static void fillDescriptions(edm::ConfigurationDescriptions & descriptions);
  virtual bool hltFilter(edm::Event&, const edm::EventSetup&, trigger::TriggerFilterObjectWithRefs & filterproduct) const override; 
  bool getCollections(edm::Event& iEvent, std::vector<T1Ref>& coll1, std::vector<T2Ref>& coll2, trigger::TriggerFilterObjectWithRefs & filterproduct) const;
  bool computeDZ(edm::Event& iEvent, T1Ref& c1, T2Ref& c2) const;
  
 private:
  // configuration
  const std::vector<edm::InputTag> originTag1_;  // input tag identifying originals 1st product
  const std::vector<edm::InputTag> originTag2_;  // input tag identifying originals 2nd product
  const edm::InputTag inputTag1_;   // input tag identifying filtered 1st product
  const edm::InputTag inputTag2_;   // input tag identifying filtered 2nd product
  const edm::EDGetTokenT<trigger::TriggerFilterObjectWithRefs> inputToken1_;
  const edm::EDGetTokenT<trigger::TriggerFilterObjectWithRefs> inputToken2_;
  edm::EDGetTokenT<reco::ElectronCollection> electronToken_;
  const int triggerType1_;
  const int triggerType2_;
  const double minDR_;              // minimum dR between two objects to be considered a pair
  const double maxDZ_;              // number of pairs passing cuts required
  const int    min_N_;              // number of pairs passing cuts required
  const bool   checkSC_;            // make sure SC constituents are different
  const bool   same_;               // 1st and 2nd product are one and the same
};

#endif //HLTDoubletDZ_h