1// -*- C++ -*-
 2#include "Rivet/Analysis.hh"
 3#include "Rivet/Projections/ChargedFinalState.hh"
 4#include "Rivet/Projections/TriggerCDFRun0Run1.hh"
 5
 6namespace Rivet {
 7
 8
 9  /// @brief CDF track \f$ p_\perp \f$ distributions at 630 and 1800 GeV
10  class CDF_1988_I263320 : public Analysis {
11  public:
12
13    RIVET_DEFAULT_ANALYSIS_CTOR(CDF_1988_I263320);
14
15
16    /// @name Analysis methods
17    /// @{
18
19    /// Book histograms and set up projections
20    void init() {
21      // Set up projections
22      declare(TriggerCDFRun0Run1(), "Trigger");
23      const ChargedFinalState cfs((Cuts::etaIn(-1.0, 1.0) && Cuts::pT >=  0.4*GeV));
24      declare(cfs, "CFS");
25
26      // Book histo
27      if (isCompatibleWithSqrtS(1800*GeV)) {
28        book(_hist_pt, 1, 1, 1);
29        _axis = YODA::Axis<double>{0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0125, 1.1, 1.2, 1.3,
30                                   1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.025,
31                                   3.2, 3.4, 3.6, 3.8, 4.0, 4.2, 4.4, 4.6, 4.8, 5.05, 5.4, 5.8, 6.2, 6.6, 7.15, 8.25, 9.75};
32      }
33      else if (isCompatibleWithSqrtS(630*GeV)) {
34        book(_hist_pt, 2, 1, 1);
35        _axis = YODA::Axis<double>{0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0125, 1.1, 1.2, 1.3,
36                                   1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.025, 2.2, 2.4, 2.6, 2.8, 3.2, 3.8};
37      }
38
39      book(_sumWTrig, "sumWTrig");
40
41    }
42
43
44    /// Do the analysis
45    void analyze(const Event& event) {
46      if (_edges.empty())  _edges = _hist_pt->xEdges();
47      // Trigger
48      const bool trigger = apply<TriggerCDFRun0Run1>(event, "Trigger").minBiasDecision();
49      if (!trigger) vetoEvent;
50      _sumWTrig->fill();
51
52      const FinalState& trackfs = apply<ChargedFinalState>(event, "CFS");
53      for (Particle p : trackfs.particles()) {
54        const double pt = p.pT()/GeV;
55        // Effective weight for d3sig/dp3 = weight / ( Delta eta * 2pi * pt ), with Delta(eta) = 2
56        const double eff_weight = 1.0/(2*2*TWOPI*pt);
57        _hist_pt->fill(map2string(pt), eff_weight);
58      }
59    }
60
61
62   string map2string(const double value) const {
63     const size_t idx = _axis.index(value);
64     if (idx && idx < _edges.size() + 1)  return _edges[idx-1];
65     return "OTHER";
66   }
67
68    /// Scale histos
69    void finalize() {
70      scale(_hist_pt, crossSectionPerEvent()/millibarn);
71      for (auto& b : _hist_pt->bins()) {
72        b.scaleW(1.0/_axis.width(b.index()));
73      }
74    }
75
76    /// @}
77
78
79  private:
80
81    /// Counter
82    CounterPtr _sumWTrig;
83
84    /// Histo
85    BinnedHistoPtr<string> _hist_pt;
86    YODA::Axis<double> _axis;
87    vector<string> _edges;
88
89  };
90
91
92
93  RIVET_DECLARE_ALIASED_PLUGIN(CDF_1988_I263320, CDF_1988_S1865951);
94
95}