1// -*- C++ -*-
 2#include "Rivet/Analysis.hh"
 3#include "Rivet/Projections/FinalState.hh"
 4#include "Rivet/Projections/FastJets.hh"
 5
 6namespace Rivet {
 7
 8
 9
10  /// @brief MC validation analysis for jet events
11  class MC_JETTAGS : public Analysis {
12  public:
13
14    MC_JETTAGS()
15      : Analysis("MC_JETTAGS")
16    {    }
17
18
19    void init() {
20      FinalState fs;
21      declare(FastJets(fs, JetAlg::ANTIKT, 0.4), "Jets04");
22      declare(FastJets(fs, JetAlg::ANTIKT, 0.6), "Jets06");
23
24      book(_h_numBTagsPerJet[0] ,"numBTagsPer04Jet", 5, -0.5, 4.5);
25      book(_h_numBTagsPerJet[1] ,"numBTagsPer06Jet", 5, -0.5, 4.5);
26      book(_h_numCTagsPerJet[0] ,"numCTagsPer04Jet", 5, -0.5, 4.5);
27      book(_h_numCTagsPerJet[1] ,"numCTagsPer06Jet", 5, -0.5, 4.5);
28      book(_h_numTauTagsPerJet[0] ,"numTauTagsPer04Jet", 5, -0.5, 4.5);
29      book(_h_numTauTagsPerJet[1] ,"numTauTagsPer06Jet", 5, -0.5, 4.5);
30    }
31
32
33    void analyze(const Event& event) {
34
35      const Jets jets04 = apply<FastJets>(event, "Jets04").jetsByPt(Cuts::pT > 20*GeV);
36      const Jets jets06 = apply<FastJets>(event, "Jets06").jetsByPt(Cuts::pT > 20*GeV);
37
38      for (const Jet& j : jets04) {
39        _h_numBTagsPerJet[0]->fill(j.bTags().size());
40        _h_numCTagsPerJet[0]->fill(j.cTags().size());
41        _h_numTauTagsPerJet[0]->fill(j.tauTags().size());
42      }
43      for (const Jet& j : jets06) {
44        _h_numBTagsPerJet[1]->fill(j.bTags().size());
45        _h_numCTagsPerJet[1]->fill(j.cTags().size());
46        _h_numTauTagsPerJet[1]->fill(j.tauTags().size());
47      }
48    }
49
50
51    void finalize() {
52      for (size_t i = 0; i < 2; ++i) {
53        normalize(_h_numBTagsPerJet[i]);
54        normalize(_h_numCTagsPerJet[i]);
55        normalize(_h_numTauTagsPerJet[i]);
56      }
57    }
58
59
60  private:
61
62    Histo1DPtr _h_numBTagsPerJet[2], _h_numCTagsPerJet[2], _h_numTauTagsPerJet[2];
63
64  };
65
66
67  RIVET_DECLARE_PLUGIN(MC_JETTAGS);
68
69}