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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/LeadingParticlesFinalState.hh"
#include "Rivet/Projections/VetoedFinalState.hh"
#include "Rivet/Projections/FastJets.hh"
namespace Rivet {
/// @brief D0 differential jet cross sections
///
/// @author Andy Buckley
/// @author Gavin Hesketh
class D0_2008_S7662670 : public Analysis {
public:
RIVET_DEFAULT_ANALYSIS_CTOR(D0_2008_S7662670);
/// @name Analysis methods
/// @{
void init() {
// Full final state
FinalState fs;
declare(fs, "FS");
// Jets
FastJets jetpro(fs, FastJets::D0ILCONE, 0.7);
declare(jetpro, "Jets");
// Book histograms
book(_h_dsigdptdy_y00_04 ,1, 1, 1);
book(_h_dsigdptdy_y04_08 ,2, 1, 1);
book(_h_dsigdptdy_y08_12 ,3, 1, 1);
book(_h_dsigdptdy_y12_16 ,4, 1, 1);
book(_h_dsigdptdy_y16_20 ,5, 1, 1);
book(_h_dsigdptdy_y20_24 ,6, 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("Empty event!");
vetoEvent;
}
// Find the jets
const JetAlg& jetpro = apply<JetAlg>(event, "Jets");
// Fill histo for each jet
for (const Jet& j : jetpro.jets(Cuts::pT > 50*GeV)) {
const double pt = j.pT();
const double y = j.absrap();
MSG_TRACE("Filling histos: pT = " << pt/GeV << ", |y| = " << y);
if (y < 0.4) {
_h_dsigdptdy_y00_04->fill(pt/GeV);
} else if (y < 0.8) {
_h_dsigdptdy_y04_08->fill(pt/GeV);
} else if (y < 1.2) {
_h_dsigdptdy_y08_12->fill(pt/GeV);
} else if (y < 1.6) {
_h_dsigdptdy_y12_16->fill(pt/GeV);
} else if (y < 2.0) {
_h_dsigdptdy_y16_20->fill(pt/GeV);
} else if (y < 2.4) {
_h_dsigdptdy_y20_24->fill(pt/GeV);
}
}
}
/// Finalize
void finalize() {
/// Scale by L_eff = sig_MC * L_exp / num_MC
const double lumi_mc = sumOfWeights() / crossSection();
const double scalefactor = 1 / lumi_mc;
scale(_h_dsigdptdy_y00_04, scalefactor);
scale(_h_dsigdptdy_y04_08, scalefactor);
scale(_h_dsigdptdy_y08_12, scalefactor);
scale(_h_dsigdptdy_y12_16, scalefactor);
scale(_h_dsigdptdy_y16_20, scalefactor);
scale(_h_dsigdptdy_y20_24, scalefactor);
}
/// @}
private:
/// @name Histograms
/// @{
Histo1DPtr _h_dsigdptdy_y00_04;
Histo1DPtr _h_dsigdptdy_y04_08;
Histo1DPtr _h_dsigdptdy_y08_12;
Histo1DPtr _h_dsigdptdy_y12_16;
Histo1DPtr _h_dsigdptdy_y16_20;
Histo1DPtr _h_dsigdptdy_y20_24;
/// @}
};
RIVET_DECLARE_ALIASED_PLUGIN(D0_2008_S7662670, D0_2008_I779574);
}
|