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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/FastJets.hh"
namespace Rivet {
/// STAR inclusive jet cross-section in pp at 200 GeV
class STAR_2006_S6870392 : public Analysis {
public:
RIVET_DEFAULT_ANALYSIS_CTOR(STAR_2006_S6870392);
/// @name Analysis methods
/// @{
/// Book projections and histograms
void init() {
FinalState fs((Cuts::etaIn(-2.0, 2.0)));
declare(fs, "FS");
declare(FastJets(fs, FastJets::CDFMIDPOINT, 0.4,
JetAlg::Muons::ALL, JetAlg::Invisibles::NONE,
nullptr, 0.5), "MidpointJets");
book(_h_jet_pT_MB ,1, 1, 1);
book(_h_jet_pT_HT ,2, 1, 1);
}
/// Do the analysis
void analyze(const Event& event) {
// Skip if the event is empty
const FinalState& fs = apply<FinalState>(event, "FS");
if (fs.empty()) {
MSG_DEBUG("Skipping event " << numEvents() << " because no final state found ");
vetoEvent;
}
// Find jets
const FastJets& jetpro = apply<FastJets>(event, "MidpointJets");
const Jets& jets = jetpro.jetsByPt();
if (!jets.empty()) {
const Jet& j1 = jets.front();
if (inRange(fabs(j1.eta()), 0.2, 0.8)) {
for (const Jet& j : jets) {
const FourMomentum pj = j.momentum();
_h_jet_pT_MB->fill(pj.pT());
_h_jet_pT_HT->fill(pj.pT());
}
}
}
}
/// Finalize
void finalize() {
double normalisation = crossSection()/picobarn/sumOfWeights()/(2*0.6*2*M_PI);
scale(_h_jet_pT_MB, normalisation);
scale(_h_jet_pT_HT, normalisation);
}
/// @}
private:
/// @name Histograms
/// @{
Histo1DPtr _h_jet_pT_MB;
Histo1DPtr _h_jet_pT_HT;
/// @}
};
RIVET_DECLARE_ALIASED_PLUGIN(STAR_2006_S6870392, STAR_2006_I723509);
}
|