1// -*- C++ -*-
 2#include "Rivet/Analysis.hh"
 3#include "Rivet/Projections/ChargedFinalState.hh"
 4
 5namespace Rivet {
 6
 7
 8  /// @brief Add a short analysis description here
 9  class TASSO_1989_I277658 : public Analysis {
10  public:
11
12    /// Constructor
13    RIVET_DEFAULT_ANALYSIS_CTOR(TASSO_1989_I277658);
14
15
16    /// @name Analysis methods
17    //@{
18
19    /// Book histograms and initialise projections before the run
20    void init() {
21      const ChargedFinalState cfs;
22      declare(cfs, "CFS");
23
24      int offset = 0;
25      if(isCompatibleWithSqrtS(14.0)) {
26	offset = 1;
27      }
28      else if(isCompatibleWithSqrtS(22.0)) {
29	offset = 2;
30      }
31      else if(isCompatibleWithSqrtS(34.8)) {
32	offset = 3;
33      }
34      else if(isCompatibleWithSqrtS(43.6)) {
35	offset = 4;
36      }
37      else {
38        MSG_WARNING("CoM energy of events sqrt(s) = " << sqrtS()/GeV
39                    << " doesn't match any available analysis energy .");
40      }
41      book(_histCh, 5, 1, offset); 
42      book(_histTotal, 2, 1, 1);
43    }
44
45
46    /// Perform the per-event analysis
47    void analyze(const Event& event) {
48      const FinalState& cfs = apply<FinalState>(event, "CFS");
49      MSG_DEBUG("Total charged multiplicity = " << cfs.size());
50      _histCh->fill(cfs.size());
51      _histTotal->fill(sqrtS(),cfs.size());
52    }
53
54
55    /// Normalise histograms etc., after the run
56    void finalize() {
57      scale(_histCh, 2.0/sumOfWeights()); // bin width (2)
58    }
59
60    //@}
61
62
63  private:
64
65    /// @name Histograms
66    //@{
67    Histo1DPtr _histCh;
68    Profile1DPtr _histTotal;
69    //@}
70  };
71
72
73  // The hook for the plugin system
74  RIVET_DECLARE_PLUGIN(TASSO_1989_I277658);
75
76
77}