Rivet analyses referenceMARKII_1982_I177606$D^{*\pm}$ production at 29 GeVExperiment: MARKII (PEP) Inspire ID: 177606 Status: VALIDATED Authors:
Beam energies: (14.5, 14.5) GeV Run details:
Rate and spectrum for $D^{*\pm}$ meson production at 29 GeV measured by the MARKII collaboration. Source code: MARKII_1982_I177606.cc 1// -*- C++ -*-
2#include "Rivet/Analysis.hh"
3#include "Rivet/Projections/UnstableParticles.hh"
4
5namespace Rivet {
6
7
8 /// @brief D* +/- production at 29 GeV
9 class MARKII_1982_I177606 : public Analysis {
10 public:
11
12 /// Constructor
13 RIVET_DEFAULT_ANALYSIS_CTOR(MARKII_1982_I177606);
14
15
16 /// @name Analysis methods
17 ///@{
18
19 /// Book histograms and initialise projections before the run
20 void init() {
21 // Initialise and register projections
22 declare(UnstableParticles(), "UFS");
23 //Histograms
24 book(_h_spect[0],2,1,1);
25 book(_h_spect[1],3,1,1);
26 }
27
28
29 /// Perform the per-event analysis
30 void analyze(const Event& event) {
31 const UnstableParticles& ufs = apply<UnstableParticles>(event, "UFS");
32 for (const Particle& p : ufs.particles(Cuts::abspid==413)) {
33 const double xp = 2.*p.E()/sqrtS();
34 const double beta = p.p3().mod() / p.E();
35 _h_spect[0]->fill(xp,1./beta);
36 _h_spect[1]->fill(xp,1./beta);
37 }
38 }
39
40
41 /// Normalise histograms etc., after the run
42 void finalize() {
43 scale(_h_spect[0], sqr(sqrtS())*crossSection()/microbarn/sumOfWeights());
44 scale(_h_spect[1], sqr(sqrtS())*crossSection()/microbarn/sumOfWeights());
45 }
46
47 ///@}
48
49
50 /// @name Histograms
51 ///@{
52 Histo1DPtr _h_spect[2];
53 ///@}
54
55
56 };
57
58
59 RIVET_DECLARE_PLUGIN(MARKII_1982_I177606);
60
61}
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