Rivet analyses

title: ARGUS_1988_I261672

Spectrum for $\Sigma_c^{0,++}$ production in $e^+e^-$ at 10 GeV in the continuum

Experiment: ARGUS (DORIS)

Inspire ID: 261672

Status: VALIDATED

Authors: - Peter Richardson

References: - Phys.Lett. B211 (1988) 489-492

Beams: e- e+

Beam energies: (5.0, 5.0)GeV

Run details: - $e^+ e^-$ analysis near the $\Upsilon$ resonances

Measurement of the $\Sigma_c^{0,++}$ spectrum in $e^+e^-$ collisions at 10 GeV.

Source code:ARGUS_1988_I261672.cc

```c++ // -- C++ --

include "Rivet/Analysis.hh"

include "Rivet/Projections/UnstableParticles.hh"

namespace Rivet {

/// @brief Sigma_c 0,++ spectrum class ARGUS_1988_I261672 : public Analysis { public:

/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(ARGUS_1988_I261672);


/// @name Analysis methods
/// @{

/// Book histograms and initialise projections before the run
void init() {

  // Initialise and register projections
  declare(UnstableParticles(), "UFS");

  // Book histograms
  book(_h_x, 1, 1, 1);
}


/// Perform the per-event analysis
void analyze(const Event& event) {
  for (const Particle& p :
       apply<UnstableParticles>(event, "UFS").particles(Cuts::abspid == 4112 or Cuts::abspid == 4222)) {
    const double xp = 2. * p.p3().mod() / sqrtS();
    _h_x->fill(xp);
  }
}


/// Normalise histograms etc., after the run
void finalize() {
  normalize(_h_x);
}

/// @}


/// @name Histograms
/// @{
Histo1DPtr _h_x;
/// @}

};

RIVET_DECLARE_PLUGIN(ARGUS_1988_I261672);

} ```