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Comparing UserCode/UHHAnalysis/SFrameTools/src/Utils.cxx (file contents):
Revision 1.8 by bazterra, Wed Dec 19 00:02:35 2012 UTC vs.
Revision 1.11 by peiffer, Wed Feb 13 16:30:24 2013 UTC

#	Line 96 | Line 96 | bool variableHepTopTag(TopJet topjet, do
96		}
97
98
99	–
100	–
101	–
102	–
99		//HEP Tagger from Ivan
100
101		bool HepTopTag(TopJet topjet)
102		{
103	<
104	<	double mjet;
109	<	double ptjet;
110	<	int nsubjets;
111	<
112	<	double topmass=172.3;
113	<	double wmass=80.4;
114	<
115	<	nsubjets=topjet.numberOfDaughters();
116	<
117	<	LorentzVector allsubjets(0,0,0,0);
118	<
119	<	for(int j=0; j<topjet.numberOfDaughters(); ++j) {
120	<	allsubjets += topjet.subjets()[j].v4();
121	<	}
122	<	if(!allsubjets.isTimelike()) {
123	<	mjet=0;
124	<	return false;
125	<	}
126	<
127	<	mjet = allsubjets.M();
128	<	ptjet= allsubjets.Pt();
129	<
130	<	double m12, m13, m23;
131	<
132	<	//The subjetcs have to be three
133	<	if(nsubjets==3) {
134	<
135	<	std::vector<Particle> subjets = topjet.subjets();
136	<	sort(subjets.begin(), subjets.end(), HigherPt());
137	<
138	<	m12 = 0;
139	<	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
140	<	m12=(subjets[0].v4()+subjets[1].v4()).M();
141	<	m13 = 0;
142	<	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
143	<	m13=(subjets[0].v4()+subjets[2].v4()).M();
144	<	m23 = 0;
145	<	if( (subjets[1].v4()+subjets[2].v4()).isTimelike()  )
146	<	m23 = (subjets[1].v4()+subjets[2].v4()).M();
147	<
148	<	} else {
149	<	return false;
150	<	}
151	<
152	<	double rmin=0.85*wmass/topmass;
153	<	double rmax=1.15*wmass/topmass;
154	<
155	<	int keep=0;
156	<
157	<	//Conditions on the subjects: at least one has to be true
158	<	//1 condition
159	<	if(atan(m13/m12)>0.2 && atan(m13/m12)<1.3 && m23/mjet>rmin && m23/mjet<rmax) keep=1;
160	<
161	<	//2 condition
162	<	double cond2left=pow(rmin,2)*(1+pow((m13/m12),2));
163	<	double cond2cent=1-pow(m23/mjet,2);
164	<	double cond2right=pow(rmax,2)*(1+pow(m13/m12,2));
165	<
166	<	if(cond2left<cond2cent && cond2cent<cond2right && m23/mjet>0.35) keep=1;
167	<
168	<	//3 condition
169	<	double cond3left=pow(rmin,2)*(1+pow((m12/m13),2));
170	<	double cond3cent=1-pow(m23/mjet,2);
171	<	double cond3right=pow(rmax,2)*(1+pow(m12/m13,2));
172	<
173	<	if(cond3left<cond3cent && cond3cent<cond3right && m23/mjet>0.35) keep=1;
174	<
175	<	//Final requirement: at least one of the three subjets conditions and total pt
176	<	if(keep==1 && ptjet>200) {
177	<	return true;
178	<	} else {
179	<	return false;
180	<	}
103	>	//call variable tagger with default parameters
104	>	return variableHepTopTag(topjet);
105
106		}
107
184	–
108		//default values (mminLower=50., mjetLower=140, mjetUpper=250.) defined in Utils.h
109		bool variableTopTag(TopJet topjet, double &mjet, int &nsubjets, double &mmin, double mminLower, double mjetLower, double mjetUpper)
110		{
#	Line 236 | Line 159 | bool variableTopTag(TopJet topjet, doubl
159
160		bool TopTag(TopJet topjet,  double &mjet, int &nsubjets, double &mmin)
161		{
162	+	//call variable tagger with default parameters
163	+	return variableTopTag(topjet, mjet, nsubjets, mmin);
164
240	–	nsubjets=topjet.numberOfDaughters();
241	–
242	–	LorentzVector allsubjets(0,0,0,0);
243	–
244	–	for(int j=0; j<topjet.numberOfDaughters(); ++j) {
245	–	allsubjets += topjet.subjets()[j].v4();
246	–	}
247	–	if(!allsubjets.isTimelike()) {
248	–	mjet=0;
249	–	mmin=0;
250	–	return false;
251	–	}
252	–
253	–	mjet = allsubjets.M();
254	–
255	–	if(nsubjets>=3) {
256	–
257	–	std::vector<Particle> subjets = topjet.subjets();
258	–	sort(subjets.begin(), subjets.end(), HigherPt());
259	–
260	–	double m01 = 0;
261	–	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
262	–	m01=(subjets[0].v4()+subjets[1].v4()).M();
263	–	double m02 = 0;
264	–	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
265	–	m02=(subjets[0].v4()+subjets[2].v4()).M();
266	–	double m12 = 0;
267	–	if( (subjets[1].v4()+subjets[2].v4()).isTimelike()  )
268	–	m12 = (subjets[1].v4()+subjets[2].v4()).M();
269	–
270	–	//minimum pairwise mass
271	–	mmin = std::min(m01,std::min(m02,m12));
272	–	}
273	–
274	–	//at least 3 sub-jets
275	–	if(nsubjets<3) return false;
276	–	//minimum pairwise mass > 50 GeV/c^2
277	–	if(mmin<50) return false;
278	–	//jet mass between 140 and 250 GeV/c^2
279	–	if(mjet<140 || mjet>250) return false;
280	–
281	–	return true;
165		}
166	<
166	>
167		Jet* nextJet(const Particle *p, std::vector<Jet> *jets)
168		{
169
170		double deltarmin = double_infinity();
171		Jet* nextjet=0;
172		for(unsigned int i=0; i<jets->size(); ++i) {
173	+	Jet ji = jets->at(i);
174	+	if (fabs(p->pt() - ji.pt())<1e-8) continue; // skip identical particle
175		if(jets->at(i).deltaR(*p) < deltarmin) {
176		deltarmin = jets->at(i).deltaR(*p);
177		nextjet = &jets->at(i);
#	Line 334 | Line 219 | double pTrel(const Particle *p, std::vec
219		{
220
221		double ptrel=0;
337	–
222		Jet* nextjet =  nextJet(p,jets);
223	+	if (!nextjet) return ptrel;
224
225		TVector3 p3(p->v4().Px(),p->v4().Py(),p->v4().Pz());
226		TVector3 jet3(nextjet->v4().Px(),nextjet->v4().Py(),nextjet->v4().Pz());
#	Line 352 | Line 237 | double pTrel(const Particle *p, std::vec
237
238		double deltaRmin(const Particle *p, std::vector<Jet> *jets)
239		{
240	<	return nextJet(p,jets)->deltaR(*p);
240	>	Jet* j = nextJet(p,jets);
241	>	double dr = 999.;
242	>	if (j) dr = j->deltaR(*p);
243	>	return dr;
244		}
245
246		TVector3 toVector(LorentzVector v4)
#	Line 439 | Line 327 | int JetFlavor(Jet *jet)
327		GenParticle genp = genparticles->at(i);
328
329		//only take status 3 particles into account
330	<	if(genp.status()!=3) continue;
330	>	//if(genp.status()!=3) continue;
331
332		if(jet->deltaR(genp)<0.5)
333		matched_genparticle_ids.push_back(genp.pdgId());

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