1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/FastJets.hh"
#include "Rivet/Projections/ZFinder.hh"
namespace Rivet {
/// @brief Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions
class CMS_2021_I1847230 : public Analysis {
public:
CMS_2021_I1847230 ()
: Analysis("CMS_2021_I1847230")
{}
void init() {
_mode = 0;
if ( getOption("MODE") == "QCD8TeV" ) _mode = 1;
else if ( getOption("MODE") == "QCD13TeV" ) _mode = 2;
else if ( getOption("MODE") == "ZJet" ) _mode = 3;
if (_mode == 1) {
_jr = 0.5;
book(_h1, "d01-x01-y01");
book(_h2, "d02-x01-y01");
book(_h3, "d03-x01-y01");
book(_h4, "d04-x01-y01");
}
if (_mode == 2) {
_jr = 0.4;
book(_h1, "d05-x01-y01");
book(_h2, "d06-x01-y01");
book(_h3, "d07-x01-y01");
book(_h4, "d08-x01-y01");
}
if (_mode == 1 or _mode == 2) {
const FastJets jets(FinalState(), FastJets::ANTIKT, _jr);
declare(jets, "jets");
}
if (_mode == 3) {
FinalState fs(Cuts::abseta < 2.4 and Cuts::pT > 100*MeV);
declare(fs, "FS");
ZFinder zfinder(fs, Cuts::abseta < 5. and Cuts::pT > 30*GeV, PID::MUON, 70*GeV, 110*GeV,
0.2, ZFinder::ChargedLeptons::PROMPT, ZFinder::ClusterPhotons::NODECAY,
ZFinder::AddPhotons::NO, 91.2*GeV);
declare(zfinder, "ZFinder");
declare(FastJets(zfinder.remainingFinalState(), FastJets::ANTIKT, 0.5), "JetsAK5_zj");
book(_h1, "d09-x01-y01");
book(_h2, "d10-x01-y01");
book(_h3, "d11-x01-y01");
book(_h4, "d12-x01-y01");
book(_ZJw_gen, "TMP/ZJw_gen");
}
}
void analyze(const Event& event) {
if (_mode == 1 or _mode ==2) {
const Jets& jets = apply<JetAlg>(event, "jets").jetsByPt(Cuts::pT > 30.0*GeV);
if (jets.size() < 3) vetoEvent;
const FourMomentum jet1 = jets[0].momentum();
const FourMomentum jet2 = jets[1].momentum();
const FourMomentum jet3 = jets[2].momentum();
if (jet1.pT() < 510.0*GeV) vetoEvent;
if (jet1.absrapidity() > 2.5 or jet2.absrapidity() > 2.5) vetoEvent;
const double del_phi12 = mapAngle0ToPi(jet2.phi() - jet1.phi());
if (abs(del_phi12 - M_PI) > 1.0) vetoEvent;
const double jet3_pt_jet2_pt = jet3.pT()/jet2.pT();
if (!inRange(jet3_pt_jet2_pt, 0.1, 0.9)) vetoEvent;
const double del_r23 = deltaR(jet3.rapidity(), jet3.phi(), jet2.rapidity(), jet2.phi());
if (!inRange(del_r23, _jr+0.1, 1.5)) vetoEvent;
if (del_r23 < 1.0) _h1->fill(jet3_pt_jet2_pt);
if (del_r23 > 1.0) _h2->fill(jet3_pt_jet2_pt);
if (jet3_pt_jet2_pt < 0.3) _h3->fill(del_r23);
if (jet3_pt_jet2_pt > 0.6) _h4->fill(del_r23);
}
if (_mode == 3) {
const ZFinder& zfinder = apply<ZFinder>(event, "ZFinder");
if (zfinder.bosons().size() != 1) vetoEvent;
const Particle& z = zfinder.bosons()[0];
const Particles leptons = sortBy(zfinder.constituents(), cmpMomByPt);
if (leptons[0].pT() < 25.0*GeV or leptons[1].pT() < 10.0*GeV or z.pT() < 80.0*GeV) vetoEvent;
if (leptons[0].absrapidity() > 2.1 or leptons[1].absrapidity() > 2.4) vetoEvent;
const PseudoJets& psjetsAK5_zj = apply<FastJets>(event, "JetsAK5_zj").pseudoJetsByPt(20.0*GeV);
if (psjetsAK5_zj.empty()) vetoEvent;
const fastjet::PseudoJet& j0 = psjetsAK5_zj[0];
const FourMomentum jmom0(j0.e(), j0.px(), j0.py(), j0.pz());
if (jmom0.absrapidity() > 1.0 or jmom0.pT() < 80.0*GeV) vetoEvent;
if (!(deltaPhi(z, jmom0) > 2.0 and deltaR(leptons[0], jmom0) > 0.5 and deltaR(leptons[1], jmom0) > 0.5)) vetoEvent;
_ZJw_gen ->fill();
if(psjetsAK5_zj.size() < 2) vetoEvent;
const fastjet::PseudoJet& j1 = psjetsAK5_zj[1];
const FourMomentum jmom1(j1.e(), j1.px(), j1.py(), j1.pz());
if(deltaR(leptons[0], jmom1) < 0.5 or deltaR(leptons[1], jmom1) < 0.5 or jmom1.absrapidity() > 2.4) vetoEvent;
const double dR_gen_Jj = deltaR(jmom0, jmom1);
if (!inRange(dR_gen_Jj, 0.5, 1.5)) vetoEvent;
const double rPt_gen_Jj = jmom1.pT()/jmom0.pT();
if (dR_gen_Jj < 1.0) _h1->fill(rPt_gen_Jj);
if (dR_gen_Jj > 1.0) _h2->fill(rPt_gen_Jj);
if (rPt_gen_Jj < 0.3) _h3->fill(dR_gen_Jj);
if (rPt_gen_Jj > 0.6) _h4->fill(dR_gen_Jj);
}
}
void finalize() {
if (_mode == 1 or _mode == 2) {
normalize(_h1);
normalize(_h2);
normalize(_h3);
normalize(_h4);
//scale(_h1, 1.0/_h1->effNumEntries());
//scale(_h2, 1.0/_h2->effNumEntries());
//scale(_h3, 1.0/_h3->effNumEntries());
//scale(_h4, 1.0/_h4->effNumEntries());
}
if (_mode == 3) {
for (size_t i = 0; i < _h1->numBins(); i++) {
_h1->bin(i).scaleW(_h1->bin(i).width());
}
for (size_t i = 0; i < _h2->numBins(); i++) {
_h2->bin(i).scaleW(_h2->bin(i).width());
}
for (size_t i = 0; i < _h3->numBins(); i++) {
_h3->bin(i).scaleW(_h3->bin(i).width());
}
for (size_t i = 0; i < _h4->numBins(); i++) {
_h4->bin(i).scaleW(_h4->bin(i).width());
}
scale(_h1, 1.0/ *_ZJw_gen);
scale(_h2, 1.0/ *_ZJw_gen);
scale(_h3, 1.0/ *_ZJw_gen);
scale(_h4, 1.0/ *_ZJw_gen);
}
}
private:
Histo1DPtr _h1;
Histo1DPtr _h2;
Histo1DPtr _h3;
Histo1DPtr _h4;
CounterPtr _ZJw_gen;
double _jr;
protected:
size_t _mode;
};
DECLARE_RIVET_PLUGIN(CMS_2021_I1847230);
}
|