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diff --git a/src/Analyses/ATLAS_2013_I1230812.cc b/src/Analyses/ATLAS_2013_I1230812.cc
--- a/src/Analyses/ATLAS_2013_I1230812.cc
+++ b/src/Analyses/ATLAS_2013_I1230812.cc
@@ -1,347 +1,347 @@
// -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/ZFinder.hh"
#include "Rivet/Projections/FastJets.hh"
#include "Rivet/Projections/VetoedFinalState.hh"
namespace Rivet {
/// Z + jets in pp at 7 TeV (combined channel / base class)
/// @note This base class contains a "mode" variable for combined, e, and mu channel derived classes
class ATLAS_2013_I1230812 : public Analysis {
public:
/// @name Constructors etc.
//@{
/// Constructor
ATLAS_2013_I1230812(string name="ATLAS_2013_I1230812")
: Analysis(name),
_weights_incl(7, 0.0),
_weights_excl(7, 0.0),
_weights_excl_pt150(7, 0.0),
_weights_excl_vbf(7, 0.0)
{
// This class uses the combined e+mu mode
_mode = 1;
}
//@}
/// Book histograms and initialise projections before the run
void init() {
// Determine the e/mu decay channels used
/// @todo Note that Zs are accepted with any rapidity: the cuts are on the e/mu: is this correct?
Cut pt20 = Cuts::pT >= 20.0*GeV;
if (_mode == 1) {
// Combined
ZFinder zfinder(FinalState(-2.5, 2.5), pt20, PID::ELECTRON, 66*GeV, 116*GeV);
addProjection(zfinder, "zfinder");
} else if (_mode == 2) {
// Electron
Cut eta_e = Cuts::abseta < 1.37 || Cuts::absetaIn(1.52, 2.47);
ZFinder zfinder(FinalState(eta_e), pt20, PID::ELECTRON, 66*GeV, 116*GeV);
addProjection(zfinder, "zfinder");
} else if (_mode == 3) {
// Muon
ZFinder zfinder(FinalState(Cuts::abseta < 2.4), pt20, PID::MUON, 66*GeV, 116*GeV);
addProjection(zfinder, "zfinder");
} else {
MSG_ERROR("Unknown decay channel mode!!!");
}
// Define veto FS in order to prevent Z-decay products entering the jet algorithm
VetoedFinalState had_fs;
had_fs.addVetoOnThisFinalState(getProjection<ZFinder>("zfinder"));
FastJets jets(had_fs, FastJets::ANTIKT, 0.4);
jets.useInvisibles(true);
addProjection(jets, "jets");
_h_njet_incl = bookHisto1D (1, 1, _mode);
_h_njet_incl_ratio = bookScatter2D(2, 1, _mode, true);
_h_njet_excl = bookHisto1D (3, 1, _mode);
_h_njet_excl_ratio = bookScatter2D (4, 1, _mode, true);
_h_njet_excl_pt150 = bookHisto1D (5, 1, _mode);
_h_njet_excl_pt150_ratio = bookScatter2D (6, 1, _mode, true);
_h_njet_excl_vbf = bookHisto1D (7, 1, _mode);
_h_njet_excl_vbf_ratio = bookScatter2D (8, 1, _mode, true);
_h_ptlead = bookHisto1D (9, 1, _mode);
_h_ptseclead = bookHisto1D (10, 1, _mode);
_h_ptthirdlead = bookHisto1D (11, 1, _mode);
_h_ptfourthlead = bookHisto1D (12, 1, _mode);
_h_ptlead_excl = bookHisto1D (13, 1, _mode);
_h_pt_ratio = bookHisto1D (14, 1, _mode);
_h_pt_z = bookHisto1D (15, 1, _mode);
_h_pt_z_excl = bookHisto1D (16, 1, _mode);
_h_ylead = bookHisto1D (17, 1, _mode);
_h_yseclead = bookHisto1D (18, 1, _mode);
_h_ythirdlead = bookHisto1D (19, 1, _mode);
_h_yfourthlead = bookHisto1D (20, 1, _mode);
_h_deltay = bookHisto1D (21, 1, _mode);
_h_mass = bookHisto1D (22, 1, _mode);
_h_deltaphi = bookHisto1D (23, 1, _mode);
_h_deltaR = bookHisto1D (24, 1, _mode);
_h_ptthirdlead_vbf = bookHisto1D (25, 1, _mode);
_h_ythirdlead_vbf = bookHisto1D (26, 1, _mode);
_h_ht = bookHisto1D (27, 1, _mode);
_h_st = bookHisto1D (28, 1, _mode);
}
/// Perform the per-event analysis
void analyze(const Event& event) {
const ZFinder& zfinder = applyProjection<ZFinder>(event, "zfinder");
if (zfinder.constituents().size()!=2) vetoEvent;
FourMomentum z = zfinder.bosons()[0].momentum();
FourMomentum lp = zfinder.constituents()[0].momentum();
FourMomentum lm = zfinder.constituents()[1].momentum();
if (deltaR(lp, lm)<0.2) vetoEvent;
Jets jets;
/// @todo Replace with a Cut passed to jetsByPt
foreach(const Jet& jet, applyProjection<FastJets>(event, "jets").jetsByPt(30*GeV)) {
FourMomentum jmom = jet.momentum();
if (jmom.absrap() < 4.4 && deltaR(lp, jmom) > 0.5 && deltaR(lm, jmom) > 0.5) {
jets.push_back(jet);
}
}
const double weight = event.weight();
if (jets.size() < 7) _weights_excl[jets.size()] += weight;
for (size_t i = 0; i < 7; ++i) {
if (jets.size() >= i) _weights_incl[i] += weight;
}
// Fill jet multiplicities
- for (size_t ijet = 1; ijet <= jets.size(); ++ijet) {
+ for (size_t ijet = 0; ijet <= jets.size(); ++ijet) {
_h_njet_incl->fill(ijet, weight);
}
_h_njet_excl->fill(jets.size(), weight);
// Require at least one jet
if (jets.size() >= 1) {
// Leading jet histos
const double ptlead = jets[0].pT()/GeV;
const double yabslead = fabs(jets[0].rapidity());
const double ptz = z.pT()/GeV;
_h_ptlead->fill(ptlead, weight);
_h_ylead ->fill(yabslead, weight);
_h_pt_z ->fill(ptz, weight);
// Fill jet multiplicities
if (ptlead > 150) {
_h_njet_excl_pt150->fill(jets.size(), weight);
if (jets.size()<7) _weights_excl_pt150[jets.size()] += weight;
}
// Loop over selected jets, fill inclusive distributions
double st=0;
double ht=lp.pT()/GeV+lm.pT()/GeV;
for (size_t ijet = 0; ijet < jets.size(); ++ijet) {
ht+=jets[ijet].pT()/GeV;
st+=jets[ijet].pT()/GeV;
}
_h_ht->fill(ht, weight);
_h_st->fill(st, weight);
// Require exactly one jet
if (jets.size() == 1) {
_h_ptlead_excl->fill(ptlead, weight);
_h_pt_z_excl ->fill(ptz, weight);
}
}
// Require at least two jets
if (jets.size() >= 2) {
// Second jet histos
const double ptlead = jets[0].pT()/GeV;
const double pt2ndlead = jets[1].pT()/GeV;
const double ptratio = pt2ndlead/ptlead;
const double yabs2ndlead = fabs(jets[1].rapidity());
_h_ptseclead ->fill(pt2ndlead, weight);
_h_yseclead ->fill(yabs2ndlead, weight);
_h_pt_ratio ->fill(ptratio, weight);
// Dijet histos
const double deltaphi = fabs(deltaPhi(jets[1], jets[0]));
const double deltarap = fabs(jets[0].rapidity() - jets[1].rapidity()) ;
const double deltar = fabs(deltaR(jets[0], jets[1], RAPIDITY));
const double mass = (jets[0].momentum() + jets[1].momentum()).mass()/GeV;
_h_mass ->fill(mass, weight);
_h_deltay ->fill(deltarap, weight);
_h_deltaphi ->fill(deltaphi, weight);
_h_deltaR ->fill(deltar, weight);
if (mass > 350 && deltarap > 3) {
_h_njet_excl_vbf->fill(jets.size(), weight);
if (jets.size()<7) _weights_excl_vbf[jets.size()] += weight;
}
}
// Require at least three jets
if (jets.size() >= 3) {
// Third jet histos
const double pt3rdlead = jets[2].pT()/GeV;
const double yabs3rdlead = fabs(jets[2].rapidity());
_h_ptthirdlead ->fill(pt3rdlead, weight);
_h_ythirdlead ->fill(yabs3rdlead, weight);
//Histos after VBF preselection
const double deltarap = fabs(jets[0].rapidity() - jets[1].rapidity()) ;
const double mass = (jets[0].momentum() + jets[1].momentum()).mass();
if (mass > 350 && deltarap > 3) {
_h_ptthirdlead_vbf ->fill(pt3rdlead, weight);
_h_ythirdlead_vbf ->fill(yabs3rdlead, weight);
}
}
// Require at least four jets
if (jets.size() >= 4) {
// Fourth jet histos
const double pt4thlead = jets[3].pT()/GeV;
const double yabs4thlead = fabs(jets[3].rapidity());
_h_ptfourthlead ->fill(pt4thlead, weight);
_h_yfourthlead ->fill(yabs4thlead, weight);
}
}
/// @name Ratio calculator util functions
//@{
/// Calculate the ratio, being careful about div-by-zero
double ratio(double a, double b) {
return (b != 0) ? a/b : 0;
}
/// Calculate the ratio error, being careful about div-by-zero
double ratio_err_incl(double a, double b) {
return (b != 0) ? sqrt(a/b*(1-a/b)/b) : 0;
}
/// Calculate the ratio error, being careful about div-by-zero
double ratio_err_excl(double a, double b) {
return (b != 0) ? sqrt(a/sqr(b) + sqr(a)/(b*b*b)) : 0;
}
//@}
void finalize() {
for (size_t i = 0; i < 6; ++i) {
_h_njet_incl_ratio->point(i).setY(ratio(_weights_incl[i+1], _weights_incl[i]),
ratio_err_incl(_weights_incl[i+1], _weights_incl[i]));
_h_njet_excl_ratio->point(i).setY(ratio(_weights_excl[i+1], _weights_excl[i]),
ratio_err_excl(_weights_excl[i+1], _weights_excl[i]));
if (i>=1) _h_njet_excl_pt150_ratio->point(i-1).setY
(ratio(_weights_excl_pt150[i+1], _weights_excl_pt150[i]),
ratio_err_excl(_weights_excl_pt150[i+1], _weights_excl_pt150[i]));
if (i>=2) _h_njet_excl_vbf_ratio->point(i-2).setY
(ratio(_weights_excl_vbf[i+1], _weights_excl_vbf[i]),
ratio_err_excl(_weights_excl_vbf[i+1], _weights_excl_vbf[i]));
}
const double xs = crossSectionPerEvent()/picobarn;
scale(_h_njet_incl , xs);
scale(_h_njet_excl , xs);
scale(_h_njet_excl_pt150, xs);
scale(_h_njet_excl_vbf , xs);
scale(_h_ptlead , xs);
scale(_h_ptseclead , xs);
scale(_h_ptthirdlead , xs);
scale(_h_ptfourthlead , xs);
scale(_h_ptlead_excl , xs);
scale(_h_pt_ratio , xs);
scale(_h_pt_z , xs);
scale(_h_pt_z_excl , xs);
scale(_h_ylead , xs);
scale(_h_yseclead , xs);
scale(_h_ythirdlead , xs);
scale(_h_yfourthlead , xs);
scale(_h_deltay , xs);
scale(_h_mass , xs);
scale(_h_deltaphi , xs);
scale(_h_deltaR , xs);
scale(_h_ptthirdlead_vbf, xs);
scale(_h_ythirdlead_vbf , xs);
scale(_h_ht , xs);
scale(_h_st , xs);
}
//@}
protected:
size_t _mode;
private:
vector<double> _weights_incl;
vector<double> _weights_excl;
vector<double> _weights_excl_pt150;
vector<double> _weights_excl_vbf;
Scatter2DPtr _h_njet_incl_ratio;
Scatter2DPtr _h_njet_excl_ratio;
Scatter2DPtr _h_njet_excl_pt150_ratio;
Scatter2DPtr _h_njet_excl_vbf_ratio;
Histo1DPtr _h_njet_incl;
Histo1DPtr _h_njet_excl;
Histo1DPtr _h_njet_excl_pt150;
Histo1DPtr _h_njet_excl_vbf;
Histo1DPtr _h_ptlead;
Histo1DPtr _h_ptseclead;
Histo1DPtr _h_ptthirdlead;
Histo1DPtr _h_ptfourthlead;
Histo1DPtr _h_ptlead_excl;
Histo1DPtr _h_pt_ratio;
Histo1DPtr _h_pt_z;
Histo1DPtr _h_pt_z_excl;
Histo1DPtr _h_ylead;
Histo1DPtr _h_yseclead;
Histo1DPtr _h_ythirdlead;
Histo1DPtr _h_yfourthlead;
Histo1DPtr _h_deltay;
Histo1DPtr _h_mass;
Histo1DPtr _h_deltaphi;
Histo1DPtr _h_deltaR;
Histo1DPtr _h_ptthirdlead_vbf;
Histo1DPtr _h_ythirdlead_vbf;
Histo1DPtr _h_ht;
Histo1DPtr _h_st;
};
class ATLAS_2013_I1230812_EL : public ATLAS_2013_I1230812 {
public:
ATLAS_2013_I1230812_EL()
: ATLAS_2013_I1230812("ATLAS_2013_I1230812_EL")
{
_mode = 2;
}
};
class ATLAS_2013_I1230812_MU : public ATLAS_2013_I1230812 {
public:
ATLAS_2013_I1230812_MU()
: ATLAS_2013_I1230812("ATLAS_2013_I1230812_MU")
{
_mode = 3;
}
};
DECLARE_RIVET_PLUGIN(ATLAS_2013_I1230812);
DECLARE_RIVET_PLUGIN(ATLAS_2013_I1230812_EL);
DECLARE_RIVET_PLUGIN(ATLAS_2013_I1230812_MU);
}

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