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root/cvsroot/UserCode/UHHAnalysis/SFrameTools/src/Utils.cxx

Comparing UserCode/UHHAnalysis/SFrameTools/src/Utils.cxx (file contents):
Revision 1.6 by hoeing, Mon Oct 15 15:35:51 2012 UTC vs.
Revision 1.11 by peiffer, Wed Feb 13 16:30:24 2013 UTC

#	Line 1 | Line 1
1		#include "../include/Utils.h"
2
3
4	<	//variable HEP Tagger from Rebekka
4	>	// global function to define a tagged jet
5
6	<	bool variableHepTopTag(TopJet topjet, double ptJetMin, double massWindowLower, double massWindowUpper, double cutCondition2, double cutCondition3){
7	<
8	<	double mjet;
9	<	double ptjet;
10	<	int nsubjets;
11	<
12	<	double topmass=172.3;
13	<	double wmass=80.4;
14	<
15	<	nsubjets=topjet.numberOfDaughters();
16	<
17	<	LorentzVector allsubjets(0,0,0,0);
18	<
19	<	for(int j=0; j<topjet.numberOfDaughters(); ++j){
20	<	allsubjets += topjet.subjets()[j].v4();
21	<	}
22	<	if(!allsubjets.isTimelike()){
23	<	mjet=0;
6	>	bool IsTagged(Jet & jet, E_BtagType type)
7	>	{
8	>	if(type==e_CSVL && jet.btag_combinedSecondaryVertex()>0.244) return true;
9	>	if(type==e_CSVM && jet.btag_combinedSecondaryVertex()>0.679) return true;
10	>	if(type==e_CSVT && jet.btag_combinedSecondaryVertex()>0.898) return true;
11	>	if(type==e_JPL && jet.btag_jetProbability()>0.275) return true;
12	>	if(type==e_JPM && jet.btag_jetProbability()>0.545) return true;
13	>	if(type==e_JPT && jet.btag_jetProbability()>0.790) return true;
14	>
15		return false;
16	<	}
16	>	}
17
18	<	mjet = allsubjets.M();
28	<	ptjet= allsubjets.Pt();
18	>	//variable HEP Tagger from Rebekka
19
20	<	double m12, m13, m23;
20	>	bool variableHepTopTag(TopJet topjet, double ptJetMin, double massWindowLower, double massWindowUpper, double cutCondition2, double cutCondition3)
21	>	{
22	>	double mjet;
23	>	double ptjet;
24	>	int nsubjets;
25
26	<	//The subjetcs have to be three
27	<	if(nsubjets==3) {
34	<
35	<	std::vector<Particle> subjets = topjet.subjets();
36	<	sort(subjets.begin(), subjets.end(), HigherPt());
37	<
38	<	m12 = 0;
39	<	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
40	<	m12=(subjets[0].v4()+subjets[1].v4()).M();
41	<	m13 = 0;
42	<	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
43	<	m13=(subjets[0].v4()+subjets[2].v4()).M();
44	<	m23 = 0;
45	<	if( (subjets[1].v4()+subjets[2].v4()).isTimelike()  )
46	<	m23 = (subjets[1].v4()+subjets[2].v4()).M();
47	<
48	<	}
49	<	else{
50	<	return false;
51	<	}
26	>	double topmass=172.3;
27	>	double wmass=80.4;
28
29	<	double rmin=massWindowLower*wmass/topmass;
54	<	double rmax=massWindowUpper*wmass/topmass;
29	>	nsubjets=topjet.numberOfDaughters();
30
31	<	int keep=0;
31	>	LorentzVector allsubjets(0,0,0,0);
32
33	<	//Conditions on the subjects: at least one has to be true
34	<	//1 condition
35	<	if(atan(m13/m12)>0.2 && atan(m13/m12)<1.3 && m23/mjet>rmin && m23/mjet<rmax) keep=1;
36	<
37	<	//2 condition
38	<	double cond2left=pow(rmin,2)*(1+pow((m13/m12),2));
39	<	double cond2cent=1-pow(m23/mjet,2);
65	<	double cond2right=pow(rmax,2)*(1+pow(m13/m12,2));
33	>	for(int j=0; j<topjet.numberOfDaughters(); ++j) {
34	>	allsubjets += topjet.subjets()[j].v4();
35	>	}
36	>	if(!allsubjets.isTimelike()) {
37	>	mjet=0;
38	>	return false;
39	>	}
40
41	<	if(cond2left<cond2cent && cond2cent<cond2right && m23/mjet>cutCondition2) keep=1;
41	>	mjet = allsubjets.M();
42	>	ptjet= allsubjets.Pt();
43
44	<	//3 condition
70	<	double cond3left=pow(rmin,2)*(1+pow((m12/m13),2));
71	<	double cond3cent=1-pow(m23/mjet,2);
72	<	double cond3right=pow(rmax,2)*(1+pow(m12/m13,2));
44	>	double m12, m13, m23;
45
46	<	if(cond3left<cond3cent && cond3cent<cond3right && m23/mjet>cutCondition3) keep=1;
46	>	//The subjetcs have to be three
47	>	if(nsubjets==3) {
48
49	<	//Final requirement: at least one of the three subjets conditions and total pt
50	<	if(keep==1 && ptjet>ptJetMin){
51	<	return true;
52	<	}
53	<	else{
54	<	return false;
55	<	}
49	>	std::vector<Particle> subjets = topjet.subjets();
50	>	sort(subjets.begin(), subjets.end(), HigherPt());
51	>
52	>	m12 = 0;
53	>	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
54	>	m12=(subjets[0].v4()+subjets[1].v4()).M();
55	>	m13 = 0;
56	>	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
57	>	m13=(subjets[0].v4()+subjets[2].v4()).M();
58	>	m23 = 0;
59	>	if( (subjets[1].v4()+subjets[2].v4()).isTimelike()  )
60	>	m23 = (subjets[1].v4()+subjets[2].v4()).M();
61
62	<	}
62	>	} else {
63	>	return false;
64	>	}
65
66	+	double rmin=massWindowLower*wmass/topmass;
67	+	double rmax=massWindowUpper*wmass/topmass;
68
69	+	int keep=0;
70
71	+	//Conditions on the subjects: at least one has to be true
72	+	//1 condition
73	+	if(atan(m13/m12)>0.2 && atan(m13/m12)<1.3 && m23/mjet>rmin && m23/mjet<rmax) keep=1;
74	+
75	+	//2 condition
76	+	double cond2left=pow(rmin,2)*(1+pow((m13/m12),2));
77	+	double cond2cent=1-pow(m23/mjet,2);
78	+	double cond2right=pow(rmax,2)*(1+pow(m13/m12,2));
79	+
80	+	if(cond2left<cond2cent && cond2cent<cond2right && m23/mjet>cutCondition2) keep=1;
81	+
82	+	//3 condition
83	+	double cond3left=pow(rmin,2)*(1+pow((m12/m13),2));
84	+	double cond3cent=1-pow(m23/mjet,2);
85	+	double cond3right=pow(rmax,2)*(1+pow(m12/m13,2));
86	+
87	+	if(cond3left<cond3cent && cond3cent<cond3right && m23/mjet>cutCondition3) keep=1;
88	+
89	+	//Final requirement: at least one of the three subjets conditions and total pt
90	+	if(keep==1 && ptjet>ptJetMin) {
91	+	return true;
92	+	} else {
93	+	return false;
94	+	}
95
96	+	}
97
98
99		//HEP Tagger from Ivan
100
101	<	bool HepTopTag(TopJet topjet){
102	<
103	<	double mjet;
104	<	double ptjet;
105	<	int nsubjets;
106	<
99	<	double topmass=172.3;
100	<	double wmass=80.4;
101	<
102	<	nsubjets=topjet.numberOfDaughters();
103	<
104	<	LorentzVector allsubjets(0,0,0,0);
105	<
106	<	for(int j=0; j<topjet.numberOfDaughters(); ++j){
107	<	allsubjets += topjet.subjets()[j].v4();
108	<	}
109	<	if(!allsubjets.isTimelike()){
110	<	mjet=0;
111	<	return false;
112	<	}
101	>	bool HepTopTag(TopJet topjet)
102	>	{
103	>	//call variable tagger with default parameters
104	>	return variableHepTopTag(topjet);
105	>
106	>	}
107
108	<	mjet = allsubjets.M();
109	<	ptjet= allsubjets.Pt();
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	>	{
111
112	<	double m12, m13, m23;
112	>	nsubjets=topjet.numberOfDaughters();
113
114	<	//The subjetcs have to be three
120	<	if(nsubjets==3) {
121	<
122	<	std::vector<Particle> subjets = topjet.subjets();
123	<	sort(subjets.begin(), subjets.end(), HigherPt());
124	<
125	<	m12 = 0;
126	<	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
127	<	m12=(subjets[0].v4()+subjets[1].v4()).M();
128	<	m13 = 0;
129	<	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
130	<	m13=(subjets[0].v4()+subjets[2].v4()).M();
131	<	m23 = 0;
132	<	if( (subjets[1].v4()+subjets[2].v4()).isTimelike()  )
133	<	m23 = (subjets[1].v4()+subjets[2].v4()).M();
134	<
135	<	}
136	<	else{
137	<	return false;
138	<	}
114	>	LorentzVector allsubjets(0,0,0,0);
115
116	<	double rmin=0.85*wmass/topmass;
117	<	double rmax=1.15*wmass/topmass;
116	>	for(int j=0; j<topjet.numberOfDaughters(); ++j) {
117	>	allsubjets += topjet.subjets()[j].v4();
118	>	}
119	>	if(!allsubjets.isTimelike()) {
120	>	mjet=0;
121	>	mmin=0;
122	>	//  mminLower=50;
123	>	//   mjetLower=140;
124	>	//   mjetUpper=250;
125	>	return false;
126	>	}
127
128	<	int keep=0;
128	>	mjet = allsubjets.M();
129
130	<	//Conditions on the subjects: at least one has to be true
146	<	//1 condition
147	<	if(atan(m13/m12)>0.2 && atan(m13/m12)<1.3 && m23/mjet>rmin && m23/mjet<rmax) keep=1;
148	<
149	<	//2 condition
150	<	double cond2left=pow(rmin,2)*(1+pow((m13/m12),2));
151	<	double cond2cent=1-pow(m23/mjet,2);
152	<	double cond2right=pow(rmax,2)*(1+pow(m13/m12,2));
130	>	if(nsubjets>=3) {
131
132	<	if(cond2left<cond2cent && cond2cent<cond2right && m23/mjet>0.35) keep=1;
132	>	std::vector<Particle> subjets = topjet.subjets();
133	>	sort(subjets.begin(), subjets.end(), HigherPt());
134
135	<	//3 condition
136	<	double cond3left=pow(rmin,2)*(1+pow((m12/m13),2));
137	<	double cond3cent=1-pow(m23/mjet,2);
138	<	double cond3right=pow(rmax,2)*(1+pow(m12/m13,2));
135	>	double m01 = 0;
136	>	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
137	>	m01=(subjets[0].v4()+subjets[1].v4()).M();
138	>	double m02 = 0;
139	>	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
140	>	m02=(subjets[0].v4()+subjets[2].v4()).M();
141	>	double m12 = 0;
142	>	if( (subjets[1].v4()+subjets[2].v4()).isTimelike() )
143	>	m12 = (subjets[1].v4()+subjets[2].v4()).M();
144
145	<	if(cond3left<cond3cent && cond3cent<cond3right && m23/mjet>0.35) keep=1;
145	>	//minimum pairwise mass
146	>	mmin = std::min(m01,std::min(m02,m12));
147	>	}
148
149	<	//Final requirement: at least one of the three subjets conditions and total pt
150	<	if(keep==1 && ptjet>200){
151	<	return true;
152	<	}
153	<	else{
154	<	return false;
169	<	}
149	>	//at least 3 sub-jets
150	>	if(nsubjets<3) return false;
151	>	//minimum pairwise mass > 50 GeV/c^2
152	>	if(mmin<mminLower) return false;
153	>	//jet mass between 140 and 250 GeV/c^2
154	>	if(mjet<mjetLower || mjet>mjetUpper) return false;
155
156	+	return true;
157		}
158
159
160	<	//default values (mminLower=50., mjetLower=140, mjetUpper=250.) defined in Utils.h
161	<	bool variableTopTag(TopJet topjet, double &mjet, int &nsubjets, double &mmin, double mminLower, double mjetLower, double mjetUpper){
162	<
163	<	nsubjets=topjet.numberOfDaughters();
164	<
165	<	LorentzVector allsubjets(0,0,0,0);
180	<
181	<	for(int j=0; j<topjet.numberOfDaughters(); ++j){
182	<	allsubjets += topjet.subjets()[j].v4();
183	<	}
184	<	if(!allsubjets.isTimelike()){
185	<	mjet=0;
186	<	mmin=0;
187	<	//  mminLower=50;
188	<	//   mjetLower=140;
189	<	//   mjetUpper=250;
190	<	return false;
191	<	}
192	<
193	<	mjet = allsubjets.M();
194	<
195	<	if(nsubjets>=3) {
196	<
197	<	std::vector<Particle> subjets = topjet.subjets();
198	<	sort(subjets.begin(), subjets.end(), HigherPt());
199	<
200	<	double m01 = 0;
201	<	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
202	<	m01=(subjets[0].v4()+subjets[1].v4()).M();
203	<	double m02 = 0;
204	<	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
205	<	m02=(subjets[0].v4()+subjets[2].v4()).M();
206	<	double m12 = 0;
207	<	if( (subjets[1].v4()+subjets[2].v4()).isTimelike() )
208	<	m12 = (subjets[1].v4()+subjets[2].v4()).M();
209	<
210	<	//minimum pairwise mass
211	<	mmin = std::min(m01,std::min(m02,m12));
212	<	}
213	<
214	<	//at least 3 sub-jets
215	<	if(nsubjets<3) return false;
216	<	//minimum pairwise mass > 50 GeV/c^2
217	<	if(mmin<mminLower) return false;
218	<	//jet mass between 140 and 250 GeV/c^2
219	<	if(mjet<mjetLower || mjet>mjetUpper) return false;
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	>
165	>	}
166
167	<	return true;
168	<	}
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);
178	>	}
179	>	}
180
181	+	return nextjet;
182	+	}
183
184	<	bool TopTag(TopJet topjet,  double &mjet, int &nsubjets, double &mmin){
185	<
227	<	nsubjets=topjet.numberOfDaughters();
184	>	bool WTag(TopJet prunedjet,  double& mjet, int &nsubjets, double& massdrop)
185	>	{
186
187	<	LorentzVector allsubjets(0,0,0,0);
230	<
231	<	for(int j=0; j<topjet.numberOfDaughters(); ++j){
232	<	allsubjets += topjet.subjets()[j].v4();
233	<	}
234	<	if(!allsubjets.isTimelike()){
235	<	mjet=0;
236	<	mmin=0;
237	<	return false;
238	<	}
187	>	nsubjets=prunedjet.numberOfDaughters();
188
189	<	mjet = allsubjets.M();
190	<
191	<	if(nsubjets>=3) {
243	<
244	<	std::vector<Particle> subjets = topjet.subjets();
245	<	sort(subjets.begin(), subjets.end(), HigherPt());
246	<
247	<	double m01 = 0;
248	<	if( (subjets[0].v4()+subjets[1].v4()).isTimelike())
249	<	m01=(subjets[0].v4()+subjets[1].v4()).M();
250	<	double m02 = 0;
251	<	if( (subjets[0].v4()+subjets[2].v4()).isTimelike() )
252	<	m02=(subjets[0].v4()+subjets[2].v4()).M();
253	<	double m12 = 0;
254	<	if( (subjets[1].v4()+subjets[2].v4()).isTimelike()  )
255	<	m12 = (subjets[1].v4()+subjets[2].v4()).M();
256	<
257	<	//minimum pairwise mass
258	<	mmin = std::min(m01,std::min(m02,m12));
259	<	}
189	>	mjet = 0;
190	>	if(prunedjet.v4().isTimelike())
191	>	mjet = prunedjet.v4().M();
192
193	<	//at least 3 sub-jets
194	<	if(nsubjets<3) return false;
195	<	//minimum pairwise mass > 50 GeV/c^2
196	<	if(mmin<50) return false;
197	<	//jet mass between 140 and 250 GeV/c^2
198	<	if(mjet<140 || mjet>250) return false;
267	<
268	<	return true;
269	<	}
193	>	//calculate mass drop for first sub-jet ordered in pt
194	>	massdrop = 0;
195	>	if(nsubjets>=1 && mjet>0) {
196	>
197	>	std::vector< Particle > subjets = prunedjet.subjets();
198	>	sort(subjets.begin(), subjets.end(), HigherPt());
199
200	<	Jet* nextJet(const Particle *p, std::vector<Jet> *jets){
200	>	double m1 = 0;
201	>	if(subjets[0].v4().isTimelike())
202	>	m1 = subjets[0].v4().M();
203
204	<	double deltarmin = double_infinity();
274	<	Jet* nextjet=0;
275	<	for(unsigned int i=0; i<jets->size();++i){
276	<	if(jets->at(i).deltaR(*p) < deltarmin){
277	<	deltarmin = jets->at(i).deltaR(*p);
278	<	nextjet = &jets->at(i);
204	>	massdrop = m1/mjet;
205		}
280	–	}
206
207	<	return nextjet;
208	<	}
207	>	//at least 2 sub-jets
208	>	if(nsubjets<2) return false;
209	>	//60 GeV < pruned jet mass < 100 GeV
210	>	if(mjet <= 60 || mjet >= 100) return false;
211	>	//mass drop < 0.4
212	>	if(massdrop>=0.4) return false;
213
214	<	bool WTag(TopJet prunedjet,  double& mjet, int &nsubjets, double& massdrop){
214	>	return true;
215
216	<	nsubjets=prunedjet.numberOfDaughters();
216	>	}
217	>
218	>	double pTrel(const Particle *p, std::vector<Jet> *jets)
219	>	{
220
221	<	mjet = 0;
222	<	if(prunedjet.v4().isTimelike())
223	<	mjet = prunedjet.v4().M();
221	>	double ptrel=0;
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());
227	>
228	>	if(p3.Mag()!=0 && jet3.Mag()!=0) {
229	>	double sin_alpha = (p3.Cross(jet3)).Mag()/p3.Mag()/jet3.Mag();
230	>	ptrel = p3.Mag()*sin_alpha;
231	>	} else {
232	>	std::cout << "something strange happend in the ptrel calculation: either lepton or jet momentum is 0" <<std::endl;
233	>	}
234
235	<	//calculate mass drop for first sub-jet ordered in pt
236	<	massdrop = 0;
295	<	if(nsubjets>=1 && mjet>0){
235	>	return ptrel;
236	>	}
237
238	<	std::vector< Particle > subjets = prunedjet.subjets();
239	<	sort(subjets.begin(), subjets.end(), HigherPt());
238	>	double deltaRmin(const Particle *p, std::vector<Jet> *jets)
239	>	{
240	>	Jet* j = nextJet(p,jets);
241	>	double dr = 999.;
242	>	if (j) dr = j->deltaR(*p);
243	>	return dr;
244	>	}
245
246	<	double m1 = 0;
247	<	if(subjets[0].v4().isTimelike())
302	<	m1 = subjets[0].v4().M();
246	>	TVector3 toVector(LorentzVector v4)
247	>	{
248
249	<	massdrop = m1/mjet;
250	<	}
251	<
252	<	//at least 2 sub-jets
253	<	if(nsubjets<2) return false;
254	<	//60 GeV < pruned jet mass < 100 GeV
310	<	if(mjet <= 60 || mjet >= 100) return false;
311	<	//mass drop < 0.4
312	<	if(massdrop>=0.4) return false;
249	>	TVector3 v3(0,0,0);
250	>	v3.SetX(v4.X());
251	>	v3.SetY(v4.Y());
252	>	v3.SetZ(v4.Z());
253	>	return v3;
254	>	}
255
256	<	return true;
256	>	TVector3 toVector(LorentzVectorXYZE v4)
257	>	{
258
259	+	TVector3 v3(0,0,0);
260	+	v3.SetX(v4.X());
261	+	v3.SetY(v4.Y());
262	+	v3.SetZ(v4.Z());
263	+	return v3;
264		}
265
266	<	double pTrel(const Particle *p, std::vector<Jet> *jets){
266	>	LorentzVectorXYZE toXYZ(LorentzVector v4)
267	>	{
268
269	<	double ptrel=0;
269	>	LorentzVectorXYZE v4_new(0,0,0,0);
270	>	v4_new.SetPx(v4.Px());
271	>	v4_new.SetPy(v4.Py());
272	>	v4_new.SetPz(v4.Pz());
273	>	v4_new.SetE(v4.E());
274	>	return v4_new;
275	>	}
276
277	<	Jet* nextjet =  nextJet(p,jets);
277	>	LorentzVector toPtEtaPhi(LorentzVectorXYZE v4)
278	>	{
279
280	<	TVector3 p3(p->v4().Px(),p->v4().Py(),p->v4().Pz());
281	<	TVector3 jet3(nextjet->v4().Px(),nextjet->v4().Py(),nextjet->v4().Pz());
280	>	LorentzVector v4_new(0,0,0,0);
281	>	v4_new.SetPt(v4.Pt());
282	>	v4_new.SetEta(v4.Eta());
283	>	v4_new.SetPhi(v4.Phi());
284	>	v4_new.SetE(v4.E());
285	>	return v4_new;
286	>	}
287
288	<	if(p3.Mag()!=0 && jet3.Mag()!=0){
289	<	double sin_alpha = (p3.Cross(jet3)).Mag()/p3.Mag()/jet3.Mag();
329	<	ptrel = p3.Mag()*sin_alpha;
330	<	}
331	<	else{
332	<	std::cout << "something strange happend in the ptrel calculation: either lepton or jet momentum is 0" <<std::endl;
333	<	}
288	>	double deltaR(LorentzVector v1, LorentzVector v2)
289	>	{
290
291	<	return ptrel;
291	>	Particle p1;
292	>	p1.set_v4(v1);
293	>	Particle p2;
294	>	p2.set_v4(v2);
295	>	return p1.deltaR(p2);
296		}
297
298	<	double deltaRmin(const Particle *p, std::vector<Jet> *jets){
299	<	return nextJet(p,jets)->deltaR(*p);
298	>	double double_infinity()
299	>	{
300	>	return std::numeric_limits<double>::infinity() ;
301		}
302
303	<	TVector3 toVector(LorentzVector v4){
303	>	int int_infinity()
304	>	{
305	>	return std::numeric_limits<int>::max() ;
306	>	}
307
308	<	TVector3 v3(0,0,0);
309	<	v3.SetX(v4.X());
310	<	v3.SetY(v4.Y());
311	<	v3.SetZ(v4.Z());
312	<	return v3;
308	>	int myPow(int x, unsigned int p)
309	>	{
310	>	int i = 1;
311	>	for (unsigned int j = 1; j <= p; j++)  i *= x;
312	>	return i;
313		}
314
315	<	TVector3 toVector(LorentzVectorXYZE v4){
315	>	int JetFlavor(Jet *jet)
316	>	{
317
318	<	TVector3 v3(0,0,0);
354	<	v3.SetX(v4.X());
355	<	v3.SetY(v4.Y());
356	<	v3.SetZ(v4.Z());
357	<	return v3;
358	<	}
318	>	EventCalc* calc = EventCalc::Instance();
319
320	<	LorentzVectorXYZE toXYZ(LorentzVector v4){
320	>	std::vector< GenParticle >* genparticles = calc->GetGenParticles();
321	>	if(genparticles) {
322
323	<	LorentzVectorXYZE v4_new(0,0,0,0);
324	<	v4_new.SetPx(v4.Px());
325	<	v4_new.SetPy(v4.Py());
365	<	v4_new.SetPz(v4.Pz());
366	<	v4_new.SetE(v4.E());
367	<	return v4_new;
368	<	}
323	>	//fill pdg IDs of all matched GenParticles
324	>	std::vector<int> matched_genparticle_ids;
325	>	for(unsigned int i=0; i<genparticles->size(); ++i) {
326
327	<	LorentzVector toPtEtaPhi(LorentzVectorXYZE v4){
327	>	GenParticle genp = genparticles->at(i);
328
329	<	LorentzVector v4_new(0,0,0,0);
330	<	v4_new.SetPt(v4.Pt());
374	<	v4_new.SetEta(v4.Eta());
375	<	v4_new.SetPhi(v4.Phi());
376	<	v4_new.SetE(v4.E());
377	<	return v4_new;
378	<	}
329	>	//only take status 3 particles into account
330	>	//if(genp.status()!=3) continue;
331
332	<	double deltaR(LorentzVector v1, LorentzVector v2){
332	>	if(jet->deltaR(genp)<0.5)
333	>	matched_genparticle_ids.push_back(genp.pdgId());
334	>	}
335
336	<	Particle p1;
337	<	p1.set_v4(v1);
338	<	Particle p2;
339	<	p2.set_v4(v2);
340	<	return p1.deltaR(p2);
341	<	}
336	>	//search for b quarks first
337	>	for(unsigned int i=0; i<matched_genparticle_ids.size(); ++i) {
338	>	if(abs(matched_genparticle_ids[i])==5) return matched_genparticle_ids[i];
339	>	}
340	>	//no b quark -> search for c quarks
341	>	for(unsigned int i=0; i<matched_genparticle_ids.size(); ++i) {
342	>	if(abs(matched_genparticle_ids[i])==4) return matched_genparticle_ids[i];
343	>	}
344	>	for(unsigned int i=0; i<matched_genparticle_ids.size(); ++i) {
345	>	if(abs(matched_genparticle_ids[i])==3) return matched_genparticle_ids[i];
346	>	}
347	>	for(unsigned int i=0; i<matched_genparticle_ids.size(); ++i) {
348	>	if(abs(matched_genparticle_ids[i])==2) return matched_genparticle_ids[i];
349	>	}
350	>	for(unsigned int i=0; i<matched_genparticle_ids.size(); ++i) {
351	>	if(abs(matched_genparticle_ids[i])==1) return matched_genparticle_ids[i];
352	>	}
353	>	for(unsigned int i=0; i<matched_genparticle_ids.size(); ++i) {
354	>	if(abs(matched_genparticle_ids[i])==21) return matched_genparticle_ids[i];
355	>	}
356
357	<	double double_infinity(){
390	<	return std::numeric_limits<double>::infinity() ;
391	<	}
357	>	}
358
359	<	int int_infinity(){
360	<	return std::numeric_limits<int>::max() ;
395	<	}
359	>	//no matched GenParticle -> return default value 0
360	>	return 0;
361
397	–	int myPow(int x, unsigned int p) {
398	–	int i = 1;
399	–	for (unsigned int j = 1; j <= p; j++)  i *= x;
400	–	return i;
362		}

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