rivet is hosted by Hepforge, IPPP Durham

Rivet analyses reference

CMS_2018_I1663452

Search for new physics in dijet angular distributions using proton-proton collisions at sqrt(s) = 13 TeV and constraints on dark matter and other models
Experiment: CMS (CERN LHC)
Inspire ID: 1663452
Status: VALIDATED
Authors:
• Andreas Hinzmann
References:
Beams: p+ p+
Beam energies: (6500.0, 6500.0) GeV
Run details:
• Hard QCD process with a pT cut of 200 GeV on sub-leading jet is recommended.

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 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/Projections/FastJets.hh" #include "Rivet/Tools/BinnedHistogram.hh" namespace Rivet { class CMS_2018_I1663452 : public Analysis { public: CMS_2018_I1663452() : Analysis("CMS_2018_I1663452") { } void init() { FinalState fs; FastJets antikt(fs, FastJets::ANTIKT, 0.4); addProjection(antikt, "ANTIKT"); _h_chi_dijet.addHistogram(6000., 13000., bookHisto1D(1, 1, 1)); _h_chi_dijet.addHistogram(5400., 6000., bookHisto1D(2, 1, 1)); _h_chi_dijet.addHistogram(4800., 5400., bookHisto1D(3, 1, 1)); _h_chi_dijet.addHistogram(4200., 4800., bookHisto1D(4, 1, 1)); _h_chi_dijet.addHistogram(3600., 4200., bookHisto1D(5, 1, 1)); _h_chi_dijet.addHistogram(3000., 3600., bookHisto1D(6, 1, 1)); _h_chi_dijet.addHistogram(2400., 3000., bookHisto1D(7, 1, 1)); } void analyze(const Event& event) { const double weight = event.weight(); const Jets& jets = applyProjection(event, "ANTIKT").jetsByPt(); if (jets.size() < 2) vetoEvent; FourMomentum j0(jets[0].momentum()); FourMomentum j1(jets[1].momentum()); double y0 = j0.rapidity(); double y1 = j1.rapidity(); if (fabs(y0+y1)/2. > 1.11) vetoEvent; double mjj = FourMomentum(j0+j1).mass(); double chi = exp(fabs(y0-y1)); if(chi<16.) _h_chi_dijet.fill(mjj, chi, weight); } void finalize() { foreach (Histo1DPtr hist, _h_chi_dijet.getHistograms()) { normalize(hist); } } private: BinnedHistogram _h_chi_dijet; }; // The hook for the plugin system DECLARE_RIVET_PLUGIN(CMS_2018_I1663452); }