ZgMassFilter.h

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#ifndef ZgMassFilter_h
#define ZgMassFilter_h
// -*- C++ -*-
//
// Package:    ZgMassFilter
// Class:      ZgMassFilter
// 
/* 

 Description: filter events based on the Pythia particle information

 Implementation: inherits from generic EDFilter
     
*/
//
// Original Author:  Alexey Ferapontov
//         Created:  Thu July 26 11:57:54 CDT 2012
//
//


// system include files
#include <memory>

// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDFilter.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"

#include "FWCore/ParameterSet/interface/ParameterSet.h"


//
// class decleration
//
namespace edm {
  class HepMCProduct;
}

class ZgMassFilter : public edm::EDFilter {
   public:
      explicit ZgMassFilter(const edm::ParameterSet&);
      ~ZgMassFilter() override;


      bool filter(edm::Event&, const edm::EventSetup&) override;
   private:
      // ----------memeber function----------------------
       int charge(const int& Id);

      // ----------member data ---------------------------
      
       edm::EDGetTokenT<edm::HepMCProduct> token_;
       double minDileptonMass;
       double minZgMass;       
};
#endif