Rivet analyses

title: CDF_2008_I790693

CDF Run II inclusive jet cross-section using the Midpoint algorithm

Experiment: CDF (Tevatron Run 2)

Inspire ID: 790693

Status: VALIDATED

Authors: - Craig Group - Frank Siegert

References: - arXiv: 0807.2204 - Phys.Rev.D78:052006,2008

Beams: p- p+

Beam energies: (980.0, 980.0)GeV

Run details: - Requires $2\rightarrow{2}$ QCD scattering processes. The minimum jet $E_\perp$ is 62 GeV, so a cut on kinematic pTmin may be required for good statistics.

Measurement of the inclusive jet cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV as a function of jet $E_\perp$, for $E_\perp >$ 62 GeV. The data is collected by the CDF II detector and has an integrated luminosity of 1.13 fb$^{-1}$. The measurement was made using the cone-based Midpoint jet clustering algorithm in rapidity bins within $|y|<2.1$. This measurement can be used to provide increased precision in PDFs at high parton momentum fraction $x$.

Source code:CDF_2008_I790693.cc

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

include "Rivet/Analysis.hh"

include "Rivet/Projections/FastJets.hh"

namespace Rivet {

/// @brief CDF Run II inclusive jet cross-section using the Midpoint algorithm. /// /// The analysis includes 1.1fb^-1 of CDF data and is the first with a /// cone algorithm to include the forward region of the detector. /// arXiv:0807.2204 to be published in PRD class CDF_2008_I790693 : public Analysis { public:

RIVET_DEFAULT_ANALYSIS_CTOR(CDF_2008_I790693);


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

// Book histos and set counters for number of events passed in each one
void init() {
  const FinalState fs;
  declare(FastJets(fs, JetAlg::CDFMIDPOINT, 0.7), "JetsM07");

  book(_binnedHistosR07, {0., 0.1, 0.7, 1.1, 1.6, 2.1},
       {"d01-x01-y01", "d02-x01-y01", "d03-x01-y01", "d04-x01-y01", "d05-x01-y01"});
}


// Do the analysis
void analyze(const Event& event) {
  for (const Jet& jet : apply<FastJets>(event, "JetsM07").jets(Cuts::pT > 62 * GeV)) {
    _binnedHistosR07->fill(jet.absrap(), jet.pT() / GeV);
  }
}


// Normalise histograms to cross-section
void finalize() {
  scale(_binnedHistosR07, crossSection() / nanobarn / sumOfWeights() / 2.0);
  divByGroupWidth(_binnedHistosR07);
}

/// @}

private:

/// Histograms in different eta regions
Histo1DGroupPtr _binnedHistosR07;

};

RIVET_DECLARE_ALIASED_PLUGIN(CDF_2008_I790693, CDF_2008_S7828950);

} ```

Aliases: - CDF_2008_S7828950