Rivet analyses referenceCLEOII_1999_I478217Spectra for $\Xi_c^{\prime}$ at 10.58 GeVExperiment: CLEOII (CESR) Inspire ID: 478217 Status: VALIDATED Authors:
Beam energies: (5.3, 5.3) GeV Run details:
Spectrum for the average of $\Xi_c^{\prime0}$ and $\Xi_c^{\prime+}$ produced at 10.58 GeV measured by CLEOII. Source code: CLEOII_1999_I478217.cc 1// -*- C++ -*-
2#include "Rivet/Analysis.hh"
3#include "Rivet/Projections/Beam.hh"
4#include "Rivet/Projections/UnstableParticles.hh"
5
6namespace Rivet {
7
8
9 /// @brief Xi_c' spectrum
10 class CLEOII_1999_I478217 : public Analysis {
11 public:
12
13 /// Constructor
14 RIVET_DEFAULT_ANALYSIS_CTOR(CLEOII_1999_I478217);
15
16
17 /// @name Analysis methods
18 ///@{
19
20 /// Book histograms and initialise projections before the run
21 void init() {
22 // projections
23 declare(Beam(), "Beams");
24 declare(UnstableParticles(), "UFS");
25 // book histos
26 book(_h_Xi_c,1,1,1);
27 }
28
29
30 /// Perform the per-event analysis
31 void analyze(const Event& event) {
32 // Get beams and average beam momentum
33 const ParticlePair& beams = apply<Beam>(event, "Beams").beams();
34 const double Emax = ( beams.first.p3().mod() + beams.second.p3().mod() ) / 2.0;
35 const double Pmax = sqrt(sqr(Emax)-sqr(2.578));
36 const UnstableParticles& ufs = apply<UnstableParticles>(event, "UFS");
37 for (const Particle& p : ufs.particles(Cuts::abspid==4312 or Cuts::abspid==4322)) {
38 double xp = p.momentum().p3().mod()/Pmax;
39 _h_Xi_c->fill(xp);
40 }
41 }
42
43
44 /// Normalise histograms etc., after the run
45 void finalize() {
46 normalize(_h_Xi_c);
47 }
48
49 ///@}
50
51
52 /// @name Histograms
53 ///@{
54 Histo1DPtr _h_Xi_c;
55 ///@}
56
57
58 };
59
60
61 RIVET_DECLARE_PLUGIN(CLEOII_1999_I478217);
62
63}
|