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#ifndef trkupgradeanalysis_IsolationStudyPlotSet_h
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#define trkupgradeanalysis_IsolationStudyPlotSet_h
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#include <vector>
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#include <utility> // for std::pair
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// Can't forward declare this because I need VHbbEvent::MuonInfo
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#include "VHbbAnalysis/VHbbDataFormats/interface/VHbbEvent.h"
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#include "TrkUpgradeAnalysis/VHbb/interface/MuonInfoCollectionPlotSet.h"
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#include "TrkUpgradeAnalysis/VHbb/interface/ElectronInfoCollectionPlotSet.h"
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#include "TrkUpgradeAnalysis/VHbb/interface/MuonInfoPlotSet.h"
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// Forward declarations
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class TH1F;
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class TDirectory;
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class VHbbEventAuxInfo;
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namespace trkupgradeanalysis
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{
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/** @brief A class to take care of booking and filling histograms that study lepton isolation.
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*
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* @author Mark Grimes (mark.grimes@bristol.ac.uk)
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* @date 11/Apr/2012
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*/
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class IsolationStudyPlotSet
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{
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public:
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IsolationStudyPlotSet();
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void book( TDirectory* pDirectory );
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void fill( const VHbbEvent& event, const VHbbEventAuxInfo* pAuxInfo );
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private:
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bool histogramHaveBeenBooked_;
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/** @brief Applies the same cleaning as VHbb package, apart from isolation.
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*
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* Code copied almost verbatim from HbbCandidateFinderAlgo::findMuons(...) in
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* VHbbAnalysis/VHbbDataFormats/src/HbbCandidateFinderAlgo.cc, but with the line about isolation
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* dropped. Copied from the VHbb package as it was on 12/Mar/2012.
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*/
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std::vector<VHbbEvent::MuonInfo> cleanMuons( const std::vector<VHbbEvent::MuonInfo>& muons );
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/** @brief Applies the same cleaning as VHbb package, apart from isolation.
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*
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* Code copied almost verbatim from HbbCandidateFinderAlgo::findElectrons(...) in
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* VHbbAnalysis/VHbbDataFormats/src/HbbCandidateFinderAlgo.cc, but with the id95 check
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* changed to not care about isolation (set to 5 instead of 7). id95 is the combination
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* of 3 bits, one for ID, one for isolation and one for conversion rejection. Hence 7
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* means all 3 bits are set, i.e. the electron passed all three. Since isolation is the
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* second bit, 5 means all but the second bit is set.
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*/
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std::vector<VHbbEvent::ElectronInfo> cleanElectrons( const std::vector<VHbbEvent::ElectronInfo>& electrons );
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/** @brief Returns the first muon in the collection and the next one with an opposite charge.
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*
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* The intention is that the collection should be sorted high to low by pT, so that this method
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* gives the highest pT muon and the next highest with opposite charge.
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*
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* @throw std::runtime_error If there are fewer than two entries in the input collection, or if
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* no oppositely charged pairs can be found.
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*/
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std::pair<VHbbEvent::MuonInfo,VHbbEvent::MuonInfo> findOppositelyChargedPair( const std::vector<VHbbEvent::MuonInfo>& muons );
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/** @brief Returns true if the first muon in the pair is more isolated than the second.
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*
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* Uses normal relative isolation, i.e. the sum of the charged, photonic and neutral energy around
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* the particle divided by the pT. The cone size where the energy is summed will have been set earlier
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* in the configuration sequence.
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*/
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bool firstMuonIsMoreIsolated( std::pair<VHbbEvent::MuonInfo,VHbbEvent::MuonInfo> diMuons );
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/** @brief Returns true if the first muon in the pair is more isolated than the second.
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*
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* Uses combined relative isolation with the delta beta correction, i.e. the sum of the charged, photonic
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* and corrected neutral energy around the particle divided by the pT. The corrected neutral energy is
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* the neutral energy minus half the charged pile up energy (since apparently the neutral pile up energy
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* is approximately half the charged). If the corrected neutral energy is less than zero, the uncorrected
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* is used (i.e. reverts to normal combined relative isolation). The cone size where the energy is summed
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* will have been set earlier in the configuration sequence.
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*/
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bool firstMuonIsMoreDeltaBetaCorrectedIsolated( std::pair<VHbbEvent::MuonInfo,VHbbEvent::MuonInfo> diMuons );
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trkupgradeanalysis::MuonInfoCollectionPlotSet cleanedMuons_; ///< Plots for the muons that have had cleaning applied (except isolation)
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trkupgradeanalysis::ElectronInfoCollectionPlotSet cleanedElectrons_; ///< Plots for the electrons that have had cleaning applied (except isolation)
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trkupgradeanalysis::MuonInfoPlotSet highestPtDiMuon_; ///< Plots for the muon in the pair with the highest pT
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trkupgradeanalysis::MuonInfoPlotSet lowestPtDiMuon_;
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trkupgradeanalysis::MuonInfoPlotSet mostIsolatedDiMuon_; ///< Plots for the muon in the pair that is most isolated
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trkupgradeanalysis::MuonInfoPlotSet leastIsolatedDiMuon_;
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trkupgradeanalysis::MuonInfoPlotSet leastDeltaBetaCorrectedIsolatedDiMuon_;
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};
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} // end of namespace trkupgradeanalysis
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#endif // end of "#ifndef trkupgradeanalysis_IsolationStudyPlotSet_h"
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