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

// -*- 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:

    RIVET_DEFAULT_ANALYSIS_CTOR(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<FastJets>(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;

  };



  RIVET_DECLARE_ALIASED_PLUGIN(CDF_2008_S7828950, CDF_2008_I790693);

}

Edit this page on GitLab