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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/WFinder.hh"
namespace Rivet {
class ATLAS_2011_I928289_W : public Analysis {
public:
/// Constructor
ATLAS_2011_I928289_W()
: Analysis("ATLAS_2011_I928289_W")
{
}
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
///Initialise and register projections here
FinalState fs;
Cut cut = (Cuts::pT >= 20*GeV);
WFinder wfinder_el_bare( fs, cut, PID::ELECTRON, 40.0*GeV, 7000.0*GeV, 25.0*GeV, 0.0, WFinder::ChargedLeptons::PROMPT, WFinder::ClusterPhotons::NODECAY, WFinder::AddPhotons::NO, WFinder::MassWindow::MT);
WFinder wfinder_el_dressed(fs, cut, PID::ELECTRON, 40.0*GeV, 7000.0*GeV, 25.0*GeV, 0.1, WFinder::ChargedLeptons::PROMPT, WFinder::ClusterPhotons::NODECAY, WFinder::AddPhotons::NO, WFinder::MassWindow::MT);
WFinder wfinder_mu_bare (fs, cut, PID::MUON , 40.0*GeV, 7000.0*GeV, 25.0*GeV, 0.0, WFinder::ChargedLeptons::PROMPT, WFinder::ClusterPhotons::NODECAY, WFinder::AddPhotons::NO, WFinder::MassWindow::MT);
WFinder wfinder_mu_dressed(fs, cut, PID::MUON , 40.0*GeV, 7000.0*GeV, 25.0*GeV, 0.1, WFinder::ChargedLeptons::PROMPT, WFinder::ClusterPhotons::NODECAY, WFinder::AddPhotons::NO, WFinder::MassWindow::MT);
declare(wfinder_el_bare , "WFinder_el_bare");
declare(wfinder_el_dressed, "WFinder_el_dressed");
declare(wfinder_mu_bare , "WFinder_mu_bare");
declare(wfinder_mu_dressed, "WFinder_mu_dressed");
/// Book histograms here
book(_h_Wminus_lepton_eta_el_bare ,3, 1, 1);
book(_h_Wminus_lepton_eta_el_dressed ,3, 1, 2);
book(_h_Wminus_lepton_eta_mu_bare ,3, 1, 3);
book(_h_Wminus_lepton_eta_mu_dressed ,3, 1, 4);
book(_h_Wplus_lepton_eta_el_bare ,5, 1, 1);
book(_h_Wplus_lepton_eta_el_dressed ,5, 1, 2);
book(_h_Wplus_lepton_eta_mu_bare ,5, 1, 3);
book(_h_Wplus_lepton_eta_mu_dressed ,5, 1, 4);
book(_h_W_asym_eta_el_bare ,7, 1, 1);
book(_h_W_asym_eta_el_dressed ,7, 1, 2);
book(_h_W_asym_eta_mu_bare ,7, 1, 3);
book(_h_W_asym_eta_mu_dressed ,7, 1, 4);
}
/// Perform the per-event analysis
void analyze(const Event& event) {
const WFinder& wfinder_el_bare = apply<WFinder>(event, "WFinder_el_bare");
const WFinder& wfinder_el_dressed = apply<WFinder>(event, "WFinder_el_dressed");
const WFinder& wfinder_mu_bare = apply<WFinder>(event, "WFinder_mu_bare");
const WFinder& wfinder_mu_dressed = apply<WFinder>(event, "WFinder_mu_dressed");
fillPlots1D(wfinder_el_bare , _h_Wplus_lepton_eta_el_bare , _h_Wminus_lepton_eta_el_bare);
fillPlots1D(wfinder_el_dressed, _h_Wplus_lepton_eta_el_dressed, _h_Wminus_lepton_eta_el_dressed);
fillPlots1D(wfinder_mu_bare , _h_Wplus_lepton_eta_mu_bare , _h_Wminus_lepton_eta_mu_bare);
fillPlots1D(wfinder_mu_dressed, _h_Wplus_lepton_eta_mu_dressed, _h_Wminus_lepton_eta_mu_dressed);
}
void fillPlots1D(const WFinder& wfinder, Histo1DPtr hist_plus, Histo1DPtr hist_minus) {
if (wfinder.bosons().size() != 1) return;
const Particle l = wfinder.constituentLeptons()[0];
const FourMomentum miss = wfinder.constituentNeutrinos()[0];
if (l.pT() > 20*GeV && miss.Et() > 25*GeV && wfinder.mT() > 40*GeV)
(l.charge3() > 0 ? hist_plus : hist_minus)->fill(l.abseta());
}
/// Normalise histograms etc., after the run
void finalize() {
// Construct asymmetry: (dsig+/deta - dsig-/deta) / (dsig+/deta + dsig-/deta)
divide(*_h_Wplus_lepton_eta_el_bare - *_h_Wminus_lepton_eta_el_bare,
*_h_Wplus_lepton_eta_el_bare + *_h_Wminus_lepton_eta_el_bare,
_h_W_asym_eta_el_bare);
divide(*_h_Wplus_lepton_eta_el_dressed - *_h_Wminus_lepton_eta_el_dressed,
*_h_Wplus_lepton_eta_el_dressed + *_h_Wminus_lepton_eta_el_dressed,
_h_W_asym_eta_el_dressed);
divide(*_h_Wplus_lepton_eta_mu_bare - *_h_Wminus_lepton_eta_mu_bare,
*_h_Wplus_lepton_eta_mu_bare + *_h_Wminus_lepton_eta_mu_bare,
_h_W_asym_eta_mu_bare);
divide(*_h_Wplus_lepton_eta_mu_dressed - *_h_Wminus_lepton_eta_mu_dressed,
*_h_Wplus_lepton_eta_mu_dressed + *_h_Wminus_lepton_eta_mu_dressed,
_h_W_asym_eta_mu_dressed);
// Print summary info
const double xs_pb(crossSection() / picobarn);
const double sumw(sumOfWeights());
/// Normalise, scale and otherwise manipulate histograms here
const double sf = 0.5 * xs_pb / sumw; // 0.5 accounts for rapidity bin width
scale(_h_Wminus_lepton_eta_el_bare , sf);
scale(_h_Wminus_lepton_eta_el_dressed, sf);
scale(_h_Wminus_lepton_eta_mu_bare , sf);
scale(_h_Wminus_lepton_eta_mu_dressed, sf);
scale(_h_Wplus_lepton_eta_el_bare , sf);
scale(_h_Wplus_lepton_eta_el_dressed , sf);
scale(_h_Wplus_lepton_eta_mu_bare , sf);
scale(_h_Wplus_lepton_eta_mu_dressed , sf);
}
//@}
private:
/// @name Histograms
//@{
Histo1DPtr _h_Wminus_lepton_eta_el_bare;
Histo1DPtr _h_Wminus_lepton_eta_el_dressed;
Histo1DPtr _h_Wminus_lepton_eta_mu_bare;
Histo1DPtr _h_Wminus_lepton_eta_mu_dressed;
Histo1DPtr _h_Wplus_lepton_eta_el_bare;
Histo1DPtr _h_Wplus_lepton_eta_el_dressed;
Histo1DPtr _h_Wplus_lepton_eta_mu_bare;
Histo1DPtr _h_Wplus_lepton_eta_mu_dressed;
Scatter2DPtr _h_W_asym_eta_el_bare;
Scatter2DPtr _h_W_asym_eta_el_dressed;
Scatter2DPtr _h_W_asym_eta_mu_bare;
Scatter2DPtr _h_W_asym_eta_mu_dressed;
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(ATLAS_2011_I928289_W);
}
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