ResSelector.hpp

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#ifndef CAFUTIL_RESSELECTOR_HPP__
#define CAFUTIL_RESSELECTOR_HPP__
#include "cafe/Processor.hpp"
#include "cafe/Collection.hpp"
#include "cafe/Variables.hpp"
#include "cafe/Event.hpp"
#include <string>

class TH1D ;

namespace caf_util {

  class ResSelector : public cafe::Processor
  {
  public:
    ResSelector(const char *name);
    bool processEvent(cafe::Event& event);
    
    bool mass(double pt1, double eta1, double phi1, int charge1,
              double pt2, double eta2, double phi2, int charge2, 
              double& mass) ;

    void begin();
    ~ResSelector() { } 
    
  private :
    bool GetMuon(const TMBMuon& muon, const std::string& pt_method,
                 double& pt, double& eta, double& phi, int& charge)  ;
    bool GetElectron(const TMBEMCluster& electron, const std::string& pt_method,
                     double& pt, double& eta, double& phi, int& charge)  ;
    
  private:
    enum Type {MUON, ELECTRON, JET, LORENTZVECTOR} ;
    Type _obj1, _obj2 ; //< integer to set the case in the particle type switch

    enum ChargeSignSelection {NOSELECTION, OPPOSITESIGN, SAMESIGN} ;
    ChargeSignSelection _charge_req; 

    std::string branch1; //< input branch 1 name
    std::string branch2; //< input branch 2 name
    std::string _pt1_method; //< how you get pt:  standard, best, track, calorimeter
    std::string _pt2_method; //< how you get pt:  standard, best, track, calorimeter
    double _low_window; double _high_window;
    double _target_mass;
    double _hist_lower; 
    double _hist_upper; 
    unsigned int _hist_bins;
    bool _useEOPetrack ;

    cafe::Variables _vars1, _vars2 ;

    TH1D* _masshist; 

  public: 
    ClassDef(ResSelector, 0);
 
};  

 } //caf_util namespace
#endif

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