Rivet analyses

title: CDF_2001_I552797

Inclusive jet cross-section

Experiment: CDF (Tevatron Run 1)

Inspire ID: 552797

Status: VALIDATED

Authors: - Frank Siegert

References: - Phys.Rev.D64:032001,2001 - DOI: 10.1103/PhysRevD.64.032001 - arXiv: hep-ph/0102074

Beams: p- p+

Beam energies: (900.0, 900.0)GeV

Run details: - Dijet events at Tevatron with $\sqrt{s}=1.8$ TeV

Measurement of the inclusive jet cross-section for jet transverse energies from 40 to 465~GeV in the pseudorapidity range $0.1<|\eta|<0.7$. The results are based on 87 $\mathrm{pb}^{-1}$ of data.

Source code:CDF_2001_I552797.cc

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

include "Rivet/Analysis.hh"

include "Rivet/Projections/FastJets.hh"

include "Rivet/Projections/FinalState.hh"

namespace Rivet {

/// @brief CDF Run I inclusive jet cross-section class CDF_2001_I552797 : public Analysis { public:

RIVET_DEFAULT_ANALYSIS_CTOR(CDF_2001_I552797);


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

/// Book histograms and initialise projections before the run
void init() {
  FinalState fs(Cuts::abseta < 4.2);
  declare(FastJets(fs, JetAlg::CDFJETCLU, 0.7), "Jets");
  book(_h_ET, 1, 1, 1);
}


/// Perform the per-event analysis
void analyze(const Event& event) {
  if (_edges.empty()) _edges = _h_ET->xEdges();
  Jets jets = apply<FastJets>(event, "Jets")
                  .jets(Cuts::Et > 40 * GeV && Cuts::abseta >= 0.1 && Cuts::abseta <= 0.7, cmpMomByEt);
  for (const Jet& jet : jets) {
    _h_ET->fill(map2string(jet.Et()));
  }
}


/// Normalise histograms etc., after the run
void finalize() {
  const double deta = 1.2;
  scale(_h_ET, crossSection() / sumOfWeights() / deta / nanobarn);
  for (auto& b : _h_ET->bins()) {
    b.scaleW(1.0 / _axis.width(b.index()));
  }
}

string map2string(const double value) const {
  const size_t idx = _axis.index(value);
  if (idx && idx <= _edges.size()) return _edges[idx - 1];
  return "OTHER";
}

/// @}

private:

/// Histogram
BinnedHistoPtr<string> _h_ET;
vector<string> _edges;
YODA::Axis<double> _axis{40.3,   46.3,   52.25,  58.1,   63.85, 69.5,   75.1,   80.7,  86.25,
                         91.75,  97.25,  102.75, 108.2,  113.6, 119.0,  124.4,  129.8, 135.2,
                         141.8,  151.05, 161.8,  172.55, 183.3, 194.1,  204.85, 217.8, 236.25,
                         257.95, 279.65, 301.3,  322.85, 347.9, 387.55, 438.25};

};

RIVET_DECLARE_ALIASED_PLUGIN(CDF_2001_I552797, CDF_2001_S4563131);

} ```

Aliases: - CDF_2001_S4563131