Rivet analyses referenceCMS_2018_I1663452Search for new physics in dijet angular distributions using proton-proton collisions at sqrt(s) = 13 TeV and constraints on dark matter and other modelsExperiment: CMS (CERN LHC) Inspire ID: 1663452 Status: VALIDATED Authors:
Beam energies: (6500.0, 6500.0) GeV Run details:
Dijet angular distributions are measured in proton-proton collisions at sqrt(s)=13 TeV using based on a data set corresponding to an integrated luminosity of 35.9/fb collected by the CMS detector at the CERN LHC. Dijet angular distributions are found to be in agreement with the perturbative QCD predictions that include electroweak corrections. Source code: CMS_2018_I1663452.cc 1// -*- C++ -*-
2#include "Rivet/Analysis.hh"
3#include "Rivet/Projections/FastJets.hh"
4#include "Rivet/Tools/BinnedHistogram.hh"
5
6namespace Rivet {
7
8
9 class CMS_2018_I1663452 : public Analysis {
10 public:
11
12 CMS_2018_I1663452()
13 : Analysis("CMS_2018_I1663452")
14 { }
15
16
17 void init() {
18 FinalState fs;
19 FastJets antikt(fs, FastJets::ANTIKT, 0.4);
20 declare(antikt, "ANTIKT");
21 {Histo1DPtr tmp; _h_chi_dijet.add(6000., 13000., book(tmp,1, 1, 1));}
22 {Histo1DPtr tmp; _h_chi_dijet.add(5400., 6000., book(tmp,2, 1, 1));}
23 {Histo1DPtr tmp; _h_chi_dijet.add(4800., 5400., book(tmp,3, 1, 1));}
24 {Histo1DPtr tmp; _h_chi_dijet.add(4200., 4800., book(tmp,4, 1, 1));}
25 {Histo1DPtr tmp; _h_chi_dijet.add(3600., 4200., book(tmp,5, 1, 1));}
26 {Histo1DPtr tmp; _h_chi_dijet.add(3000., 3600., book(tmp,6, 1, 1));}
27 {Histo1DPtr tmp; _h_chi_dijet.add(2400., 3000., book(tmp,7, 1, 1));}
28 }
29
30 void analyze(const Event& event) {
31 const Jets& jets = applyProjection<JetAlg>(event, "ANTIKT").jetsByPt();
32 if (jets.size() < 2) vetoEvent;
33 FourMomentum j0(jets[0].momentum());
34 FourMomentum j1(jets[1].momentum());
35 double y0 = j0.rapidity();
36 double y1 = j1.rapidity();
37 if (fabs(y0+y1)/2. > 1.11) vetoEvent;
38 double mjj = FourMomentum(j0+j1).mass();
39 double chi = exp(fabs(y0-y1));
40 if(chi<16.) _h_chi_dijet.fill(mjj, chi);
41 }
42
43
44 void finalize() {
45 for (Histo1DPtr hist : _h_chi_dijet.histos()) {
46 normalize(hist);
47 }
48 }
49
50
51 private:
52
53 BinnedHistogram _h_chi_dijet;
54
55 };
56
57
58
59 // The hook for the plugin system
60 RIVET_DECLARE_PLUGIN(CMS_2018_I1663452);
61
62}
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