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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/ZFinder.hh"
namespace Rivet {
/// @brief MC validation analysis for higgs [-> tau tau] events
class MC_HINC : public Analysis {
public:
/// Default constructor
MC_HINC()
: Analysis("MC_HINC")
{ }
/// @name Analysis methods
//@{
/// Book histograms
void init() {
Cut cut = Cuts::abseta < 3.5 && Cuts::pT > 25*GeV;
/// @todo Urk, abuse! Need explicit HiggsFinder and TauFinder?
ZFinder hfinder(FinalState(), cut, PID::TAU, 115*GeV, 135*GeV, 0.0, ZFinder::ClusterPhotons::NONE, ZFinder::AddPhotons::NO, 125*GeV);
declare(hfinder, "Hfinder");
book(_h_H_mass ,"H_mass", 50, 119.7, 120.3);
book(_h_H_pT ,"H_pT", logspace(100, 1.0, 0.5*(sqrtS()>0.?sqrtS():14000.)/GeV));
book(_h_H_pT_peak ,"H_pT_peak", 25, 0.0, 25.0);
book(_h_H_y ,"H_y", 40, -4, 4);
book(_h_H_phi ,"H_phi", 25, 0.0, TWOPI);
book(_h_lepton_pT ,"lepton_pT", logspace(100, 10.0, 0.25*(sqrtS()>0.?sqrtS():14000.)/GeV));
book(_h_lepton_eta ,"lepton_eta", 40, -4, 4);
}
/// Do the analysis
void analyze(const Event & e) {
const ZFinder& hfinder = apply<ZFinder>(e, "Hfinder");
if (hfinder.bosons().size() != 1) vetoEvent;
const double weight = 1.0;
FourMomentum hmom(hfinder.bosons()[0].momentum());
_h_H_mass->fill(hmom.mass()/GeV, weight);
_h_H_pT->fill(hmom.pT()/GeV, weight);
_h_H_pT_peak->fill(hmom.pT()/GeV, weight);
_h_H_y->fill(hmom.rapidity(), weight);
_h_H_phi->fill(hmom.phi(), weight);
for (const Particle& l : hfinder.constituents()) {
_h_lepton_pT->fill(l.pT()/GeV, weight);
_h_lepton_eta->fill(l.eta(), weight);
}
}
/// Finalize
void finalize() {
const double xsec = crossSection()/picobarn;
normalize(_h_H_mass, xsec);
normalize(_h_H_pT, xsec);
normalize(_h_H_pT_peak, xsec);
normalize(_h_H_y, xsec);
normalize(_h_H_phi, xsec);
normalize(_h_lepton_pT, xsec);
normalize(_h_lepton_eta, xsec);
}
//@}
private:
/// @name Histograms
//@{
Histo1DPtr _h_H_mass;
Histo1DPtr _h_H_pT;
Histo1DPtr _h_H_pT_peak;
Histo1DPtr _h_H_y;
Histo1DPtr _h_H_phi;
Histo1DPtr _h_lepton_pT;
Histo1DPtr _h_lepton_eta;
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(MC_HINC);
}
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