1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //---------------------------------------------------------------------
20 // Stores the output of a jet algorithm
21 // Author: jgcn@mda.cinvestav.mx
22 //---------------------------------------------------------------------
25 #include <Riostream.h>
26 #include <TClonesArray.h>
27 #include <TLorentzVector.h>
47 fTrackRef(new TRefArray())
49 // Default constructor
50 fJets = new TClonesArray("TLorentzVector",1000);
55 fPtFromSignal = TArrayF();
56 fMultiplicities = TArrayI();
58 fPtChPtCutIn = TArrayF();
59 fEnTotChPtCutIn = TArrayF();
63 ////////////////////////////////////////////////////////////////////////
74 ////////////////////////////////////////////////////////////////////////
76 Bool_t AliJet::OutOfRange(Int_t i, const char *s) const
78 // checks if i is a valid index. s = name of calling method
79 if (i >= fNJets || i < 0) {
80 cout << s << " Index " << i << " out of range" << endl;
86 ////////////////////////////////////////////////////////////////////////
88 TLorentzVector* AliJet::GetJet(Int_t i)
91 if (OutOfRange(i, "AliJet::GetJet:")) return 0;
92 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
96 ////////////////////////////////////////////////////////////////////////
98 Int_t AliJet::GetMultiplicity(Int_t i) const
100 // gets multiplicity of i-jet
101 if (OutOfRange(i, "AliJet::GetMultiplicity:")) return 0;
102 return fMultiplicities[i];
105 ////////////////////////////////////////////////////////////////////////
107 Int_t AliJet::GetNCell(Int_t i) const
109 // gets number of cell of i-jet
110 if (OutOfRange(i, "AliJet::GetNCell:")) return 0;
114 ////////////////////////////////////////////////////////////////////////
116 Double_t AliJet::GetPx(Int_t i)
118 // Get Px component of jet i
119 if (OutOfRange(i, "AliJet::GetPx:")) return -1e30;
120 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
124 ////////////////////////////////////////////////////////////////////////
126 Double_t AliJet::GetPy(Int_t i)
128 // Get Py component of jet i
129 if (OutOfRange(i, "AliJet::GetPy:")) return -1e30;
130 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
134 ////////////////////////////////////////////////////////////////////////
136 Double_t AliJet::GetPz(Int_t i)
138 // Get Pz component of jet i
139 if (OutOfRange(i, "AliJet::GetPz:")) return -1e30;
140 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
144 ////////////////////////////////////////////////////////////////////////
146 Double_t AliJet::GetP(Int_t i)
148 // Get momentum of jet i
149 if (OutOfRange(i, "AliJet::GetP:")) return -1e30;
150 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
154 ////////////////////////////////////////////////////////////////////////
156 Double_t AliJet::GetE(Int_t i)
158 // Get energy of jet i
159 if (OutOfRange(i, "AliJet::GetE:")) return -1e30;
160 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
164 ////////////////////////////////////////////////////////////////////////
166 Double_t AliJet::GetPt(Int_t i)
168 // Get transverse momentum of jet i
169 if (OutOfRange(i, "AliJet::GetPt:")) return -1e30;
170 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
174 ////////////////////////////////////////////////////////////////////////
176 Double_t AliJet::GetEta(Int_t i)
179 if (OutOfRange(i, "AliJet::GetEta:")) return -1e30;
180 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
184 ////////////////////////////////////////////////////////////////////////
186 Double_t AliJet::GetPhi(Int_t i)
189 if (OutOfRange(i, "AliJet::GetPhi:")) return -1e30;
190 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
191 return ( (lv->Phi() < 0) ? (lv->Phi()) + 2. * TMath::Pi() : lv->Phi());
194 ////////////////////////////////////////////////////////////////////////
196 Double_t AliJet::GetTheta(Int_t i)
198 // Get theta of jet i
199 if (OutOfRange(i, "AliJet::GetTheta:")) return -1e30;
200 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
204 ////////////////////////////////////////////////////////////////////////
206 Double_t AliJet::GetMass(Int_t i)
208 // Get invariant mass of jet i
209 if (OutOfRange(i, "AliJet::GetMass:")) return -1e30;
210 TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
214 ////////////////////////////////////////////////////////////////////////
217 void AliJet::AddJet(Double_t px, Double_t py, Double_t pz, Double_t e)
219 // Add new jet to the list
220 new ((*fJets)[fNJets++]) TLorentzVector(px,py,pz,e);
223 ////////////////////////////////////////////////////////////////////////
225 void AliJet::SetInJet(Int_t* j)
227 // set information of which input object belongs
228 // to each jet. If zero, object was not assigned to
229 // a jet, if n,positive, it was assiged to jet n
230 // if n, negative, it is within cone of jet n, but
231 // it did not passed the user cuts. filled in by AliJetFinder
232 if (fNInput>0) fInJet.Set(fNInput, j);
235 ////////////////////////////////////////////////////////////////////////
237 void AliJet::SetEtaIn(Float_t* r)
239 if (fNInput>0) fEtaIn.Set(fNInput, r);
242 ////////////////////////////////////////////////////////////////////////
244 void AliJet::SetPtIn(Float_t* pt)
246 if (fNInput>0) fPtIn.Set(fNInput, pt);
249 ////////////////////////////////////////////////////////////////////////
251 void AliJet::SetPhiIn(Float_t* x)
253 if (fNInput>0) fPhiIn.Set(fNInput, x);
255 ////////////////////////////////////////////////////////////////////////
257 void AliJet::SetPtChargedPtCutIn(Float_t* x)
259 if (fNInput>0) fPtChPtCutIn.Set(fNInput, x);
261 ////////////////////////////////////////////////////////////////////////
263 void AliJet::SetEnTotChargedPtCutIn(Float_t* x)
265 if (fNInput>0) fEnTotChPtCutIn.Set(fNInput, x);
268 ////////////////////////////////////////////////////////////////////////
270 void AliJet::SetDetectorFlagIn(Int_t* x)
272 if (fNInput>0) fDetIn.Set(fNInput, x);
275 ////////////////////////////////////////////////////////////////////////
277 void AliJet::SetPtFromSignal(Float_t* p)
279 // set information of percentage of pt of jets
280 // coming from signal (ie Pythia)
281 if (fNJets>0) fPtFromSignal.Set(fNJets, p);
284 ////////////////////////////////////////////////////////////////////////
286 void AliJet::SetMultiplicities(Int_t* m)
288 // set information of jet multiplicities
289 // filled in by AliJetFinder
290 if (fNJets>0) fMultiplicities.Set(fNJets, m);
293 ////////////////////////////////////////////////////////////////////////
295 void AliJet::SetNCells(Int_t* n)
297 if (fNJets>0) fNCells.Set(fNJets, n);
300 ////////////////////////////////////////////////////////////////////////
302 void AliJet::ClearJets(Option_t *option)
305 fJets->Clear(option);
308 fMultiplicities.Set(0);
310 fPtFromSignal.Set(0);
316 fEnTotChPtCutIn.Set(0);
320 ////////////////////////////////////////////////////////////////////////
322 void AliJet::PrintJets()
324 // Print jet information
326 cout << " AliJet::PrintJets: There are no jets in this event " << endl;
329 cout << " AliJet::PrintJets: There are " << fNJets
330 << " jets in this event" << endl;
331 for(Int_t i=0;i<fNJets;i++) {
332 cout << " Jet " << i << " (px,py,pz,en)=(" << GetPx(i)
337 cout << " (pt,eta,phi)=(" << GetPt(i)
339 << "," << GetPhi(i) << ")" << endl;
340 cout << " # of tracks =" << GetMultiplicity(i) << endl;