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## Rivet analyses reference

### CDF_2008_S7828950

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:
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_S7828950.cc
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 // -*- C++ -*- #include "Rivet/Analysis.hh" #include "Rivet/Tools/BinnedHistogram.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_S7828950 : public Analysis { public: /// Constructor CDF_2008_S7828950() : Analysis("CDF_2008_S7828950") { } /// @name Analysis methods //@{ // Book histos and set counters for number of events passed in each one void init() { const FinalState fs; declare(FastJets(fs, FastJets::CDFMIDPOINT, 0.7), "JetsM07"); {Histo1DPtr tmp; _binnedHistosR07.add( 0, 0.1, book(tmp, 1, 1, 1));} {Histo1DPtr tmp; _binnedHistosR07.add(0.1, 0.7, book(tmp, 2, 1, 1));} {Histo1DPtr tmp; _binnedHistosR07.add(0.7, 1.1, book(tmp, 3, 1, 1));} {Histo1DPtr tmp; _binnedHistosR07.add(1.1, 1.6, book(tmp, 4, 1, 1));} {Histo1DPtr tmp; _binnedHistosR07.add(1.6, 2.1, book(tmp, 5, 1, 1));} } // Do the analysis void analyze(const Event& event) { for (const Jet& jet : apply(event, "JetsM07").jets(Cuts::pT > 62*GeV)) { _binnedHistosR07.fill(jet.absrap(), jet.pT(), 1.0); } } // Normalise histograms to cross-section void finalize() { _binnedHistosR07.scale(crossSection()/nanobarn/sumOfWeights()/2.0, this); } //@} private: /// Histograms in different eta regions BinnedHistogram _binnedHistosR07; }; // The hook for the plugin system DECLARE_RIVET_PLUGIN(CDF_2008_S7828950); }