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1963b290 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2004, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
d87bd045 | 19 | //*-- Implementation version v2 of EMCAL Manager class; SHASHLYK version |
1963b290 | 20 | //*-- An object of this class does not produce digits |
21 | //*-- It is the one to use if you do want to produce outputs in TREEH | |
22 | //*-- | |
3d841a9f | 23 | //*-- Author : Alexei Pavlinov (WSU) |
d87bd045 | 24 | |
1963b290 | 25 | // This Class not stores information on all particles prior to EMCAL entry - in order to facilitate analysis. |
26 | // This is done by setting fIShunt =2, and flagging all parents of particles entering the EMCAL. | |
27 | ||
7dd95fbf | 28 | #include <cassert> |
1963b290 | 29 | // --- ROOT system --- |
cde6a23d | 30 | #include <TBrowser.h> |
7ca4655f | 31 | #include <TClonesArray.h> |
cde6a23d | 32 | #include <TH2.h> |
7ca4655f | 33 | #include <TParticle.h> |
a1e17193 | 34 | #include <TROOT.h> |
7ca4655f | 35 | #include <TVirtualMC.h> |
1963b290 | 36 | |
37 | // --- Standard library --- | |
38 | ||
39 | // --- AliRoot header files --- | |
40 | #include "AliEMCALv2.h" | |
41 | #include "AliEMCALHit.h" | |
42 | #include "AliEMCALGeometry.h" | |
43 | #include "AliRun.h" | |
44 | #include "AliHeader.h" | |
45 | #include "AliMC.h" | |
5bf6eb16 | 46 | #include "AliStack.h" |
6c62c273 | 47 | #include "AliTrackReference.h" |
dc7da436 | 48 | // for TRD1 case only; May 31,2006 |
1963b290 | 49 | |
50 | ClassImp(AliEMCALv2) | |
51 | ||
1963b290 | 52 | //______________________________________________________________________ |
18a21c7c | 53 | AliEMCALv2::AliEMCALv2() |
ab6a174f | 54 | : AliEMCALv1() |
18a21c7c | 55 | { |
1963b290 | 56 | // ctor |
1963b290 | 57 | } |
58 | ||
59 | //______________________________________________________________________ | |
18a21c7c | 60 | AliEMCALv2::AliEMCALv2(const char *name, const char *title) |
ab6a174f | 61 | : AliEMCALv1(name,title) |
18a21c7c | 62 | { |
1963b290 | 63 | // Standard Creator. |
64 | ||
96d5ea0d | 65 | //fHits= new TClonesArray("AliEMCALHit",1000); //Already done in ctor of v1 |
1963b290 | 66 | gAlice->GetMCApp()->AddHitList(fHits); |
67 | ||
68 | fNhits = 0; | |
69 | fIshunt = 2; // All hits are associated with particles entering the calorimeter | |
70 | fTimeCut = 30e-09; | |
71 | ||
72 | fGeometry = GetGeometry(); | |
1963b290 | 73 | } |
74 | ||
75 | //______________________________________________________________________ | |
76 | AliEMCALv2::~AliEMCALv2(){ | |
77 | // dtor | |
78 | ||
96d5ea0d | 79 | //Already done in dtor of v1 |
80 | // if ( fHits ) { | |
81 | // fHits->Clear(); | |
82 | // delete fHits; | |
83 | // fHits = 0; | |
84 | // } | |
1963b290 | 85 | } |
86 | ||
87 | //______________________________________________________________________ | |
88 | void AliEMCALv2::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy, | |
89 | Int_t id, Float_t * hits,Float_t * p){ | |
90 | // Add a hit to the hit list. | |
91 | // An EMCAL hit is the sum of all hits in a tower section | |
92 | // originating from the same entering particle | |
80b68f94 | 93 | static Int_t hitCounter; |
94 | static AliEMCALHit *newHit, *curHit; | |
95 | static Bool_t deja ; | |
96 | ||
97 | deja = kFALSE; | |
1963b290 | 98 | |
99 | newHit = new AliEMCALHit(shunt, primary, tracknumber, iparent, ienergy, id, hits, p); | |
100 | for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) { | |
101 | curHit = (AliEMCALHit*) (*fHits)[hitCounter]; | |
102 | // We add hits with the same tracknumber, while GEANT treats | |
103 | // primaries succesively | |
104 | if(curHit->GetPrimary() != primary) | |
105 | break; | |
106 | if( *curHit == *newHit ) { | |
107 | *curHit = *curHit + *newHit; | |
108 | deja = kTRUE; | |
109 | // break; // 30-aug-04 by PAI | |
110 | } // end if | |
111 | } // end for hitCounter | |
112 | ||
113 | if ( !deja ) { | |
114 | new((*fHits)[fNhits]) AliEMCALHit(*newHit); | |
115 | fNhits++; | |
116 | } | |
117 | // printf(" fNhits %i \n", fNhits); | |
118 | delete newHit; | |
119 | } | |
d297ef6e | 120 | |
1963b290 | 121 | //______________________________________________________________________ |
122 | void AliEMCALv2::StepManager(void){ | |
123 | // Accumulates hits as long as the track stays in a tower | |
124 | ||
125 | // position wrt MRS and energy deposited | |
126 | static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited | |
127 | static Float_t pmom[4]={0.,0.,0.,0.}; | |
d25f2c54 | 128 | static TLorentzVector pos; // Lorentz vector of the track current position. |
129 | static TLorentzVector mom; // Lorentz vector of the track current momentum. | |
130 | static Float_t ienergy = 0; // part->Energy(); | |
53e430a3 | 131 | static TString curVolName=""; |
132 | static int supModuleNumber=-1, moduleNumber=-1, yNumber=-1, xNumber=-1, absid=-1; | |
d297ef6e | 133 | static int keyGeom=1; //real TRD1 geometry |
a6e0ebfe | 134 | static const char *vn = "SCMX"; // Apr 13, 2006 - only TRD1 case now |
1963b290 | 135 | static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05 |
136 | static int nSMON[7]={2,4,6,8,10,12}; | |
137 | static Float_t depositedEnergy=0.0; | |
138 | ||
139 | if(keyGeom == 0) { | |
140 | keyGeom = 2; | |
141 | if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) { | |
142 | vn = "SCMX"; // old TRD2(TRD1) or WSUC | |
143 | keyGeom = 1; | |
144 | } | |
145 | printf("AliEMCALv2::StepManager(): keyGeom %i : Sensetive volume %s \n", | |
146 | keyGeom, vn); | |
147 | if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n"); | |
148 | } | |
149 | Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber(); | |
53e430a3 | 150 | Int_t parent=0; |
151 | TParticle* part=0; | |
1963b290 | 152 | |
153 | curVolName = gMC->CurrentVolName(); | |
1d46d1f6 | 154 | if(curVolName.Contains(vn) || curVolName.Contains("SCX")) { // We are in a scintillator layer; SCX for 3X3 |
1963b290 | 155 | |
156 | if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy | |
157 | // Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing | |
158 | if (fCurPrimary==-1) | |
159 | fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber); | |
160 | ||
161 | if (fCurParent==-1 || tracknumber != fCurTrack) { | |
162 | // Check parentage | |
e63c78ba | 163 | parent=tracknumber; |
6c62c273 | 164 | |
1963b290 | 165 | if (fCurParent != -1) { |
166 | while (parent != fCurParent && parent != -1) { | |
e63c78ba | 167 | //TParticle *part=gAlice->GetMCApp()->Particle(parent); |
168 | part=gAlice->GetMCApp()->Particle(parent); | |
1963b290 | 169 | parent=part->GetFirstMother(); |
170 | } | |
171 | } | |
172 | if (fCurParent==-1 || parent==-1) { | |
e63c78ba | 173 | //Int_t parent=tracknumber; |
174 | //TParticle *part=gAlice->GetMCApp()->Particle(parent); | |
175 | parent=tracknumber; | |
176 | part=gAlice->GetMCApp()->Particle(parent); | |
1963b290 | 177 | while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) { |
178 | parent=part->GetFirstMother(); | |
179 | if (parent!=-1) | |
180 | part=gAlice->GetMCApp()->Particle(parent); | |
181 | } | |
182 | fCurParent=parent; | |
183 | if (fCurParent==-1) | |
184 | Error("StepManager","Cannot find parent"); | |
185 | else { | |
e63c78ba | 186 | //TParticle *part=gAlice->GetMCApp()->Particle(fCurParent); |
187 | part=gAlice->GetMCApp()->Particle(fCurParent); | |
1963b290 | 188 | ienergy = part->Energy(); |
6c62c273 | 189 | |
190 | //Add reference to parent in TR tree. | |
191 | AddTrackReference(tracknumber, AliTrackReference::kEMCAL); | |
192 | ||
1963b290 | 193 | } |
194 | while (parent != -1) { | |
195 | part=gAlice->GetMCApp()->Particle(parent); | |
196 | part->SetBit(kKeepBit); | |
197 | parent=part->GetFirstMother(); | |
198 | } | |
199 | } | |
200 | fCurTrack=tracknumber; | |
201 | } | |
202 | gMC->TrackPosition(pos); | |
203 | xyzte[0] = pos[0]; | |
204 | xyzte[1] = pos[1]; | |
205 | xyzte[2] = pos[2]; | |
206 | xyzte[3] = gMC->TrackTime() ; | |
207 | ||
208 | gMC->TrackMomentum(mom); | |
209 | pmom[0] = mom[0]; | |
210 | pmom[1] = mom[1]; | |
211 | pmom[2] = mom[2]; | |
212 | pmom[3] = mom[3]; | |
213 | ||
214 | // if(ientry%200 > 0) return; // testing | |
215 | supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0; | |
d25f2c54 | 216 | if(keyGeom >= 1) { // TRD1 case now |
1963b290 | 217 | gMC->CurrentVolOffID(4, supModuleNumber); |
218 | gMC->CurrentVolOffID(3, moduleNumber); | |
219 | gMC->CurrentVolOffID(1, yNumber); | |
220 | gMC->CurrentVolOffID(0, xNumber); // really x number now | |
d87bd045 | 221 | if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05 |
1d46d1f6 | 222 | // Nov 10,2006 |
d25f2c54 | 223 | if(strcmp(gMC->CurrentVolOffName(0),vn) != 0) { // 3X3 case |
224 | if (strcmp(gMC->CurrentVolOffName(0),"SCX1")==0) xNumber=1; | |
225 | else if(strcmp(gMC->CurrentVolOffName(0),"SCX2")==0) xNumber=2; | |
226 | else if(strcmp(gMC->CurrentVolOffName(0),"SCX3")==0) xNumber=3; | |
6c62c273 | 227 | else Fatal("StepManager()", "Wrong name of sensitive volume in 3X3 case : %s ", gMC->CurrentVolOffName(0)); |
1d46d1f6 | 228 | } |
1963b290 | 229 | } else { |
230 | gMC->CurrentVolOffID(5, supModuleNumber); | |
231 | gMC->CurrentVolOffID(4, moduleNumber); | |
232 | gMC->CurrentVolOffID(1, yNumber); | |
d87bd045 | 233 | gMC->CurrentVolOffID(0, xNumber); |
234 | if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1]; | |
1963b290 | 235 | else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1]; |
236 | else assert(0); // something wrong | |
237 | } | |
c694fff1 | 238 | |
239 | // Due to problem with index ordering conventions the calcultation of absid is no more like this: | |
240 | //absid = fGeometry->GetAbsCellId(smNumber, moduleNumber-1, yNumber-1, xNumber-1); | |
241 | ||
242 | //Swap A side in Phi and C side in Eta due to wrong indexing. | |
243 | Int_t iphi = -1; | |
244 | Int_t ieta = -1; | |
245 | Int_t smNumber = supModuleNumber-1; | |
246 | Int_t smType = 1; | |
247 | fGeometry->GetCellPhiEtaIndexInSModule(smNumber,moduleNumber-1,yNumber-1,xNumber-1, iphi, ieta); | |
248 | if (smNumber%2 == 0) { | |
249 | ieta = ((fGeometry->GetCentersOfCellsEtaDir()).GetSize()-1)-ieta;// 47-ieta, revert the ordering on A side in order to keep convention. | |
250 | } | |
251 | else { | |
252 | if(smNumber >= 10) smType = 2 ; //half supermodule | |
253 | iphi= ((fGeometry->GetCentersOfCellsPhiDir()).GetSize()/smType-1)-iphi;//23-iphi, revert the ordering on C side in order to keep convention. | |
254 | } | |
255 | ||
256 | //Once we know the indexes, calculate the absolute ID | |
257 | absid = fGeometry->GetAbsCellIdFromCellIndexes(smNumber, iphi, ieta); | |
258 | ||
1d46d1f6 | 259 | if (absid < 0) { |
260 | printf(" supModuleNumber %i : moduleNumber %i : yNumber %i : xNumber %i \n", | |
c694fff1 | 261 | supModuleNumber, moduleNumber, yNumber, xNumber); |
1d46d1f6 | 262 | Fatal("StepManager()", "Wrong id : %i ", absid) ; |
263 | } | |
1963b290 | 264 | |
265 | Float_t lightYield = depositedEnergy ; | |
266 | // Apply Birk's law (copied from G3BIRK) | |
267 | ||
268 | if (gMC->TrackCharge()!=0) { // Check | |
cde6a23d | 269 | Float_t birkC1Mod = 0; |
1963b290 | 270 | if (fBirkC0==1){ // Apply correction for higher charge states |
cde6a23d | 271 | if (TMath::Abs(gMC->TrackCharge())>=2) birkC1Mod = fBirkC1*7.2/12.6; |
272 | else birkC1Mod = fBirkC1; | |
1963b290 | 273 | } |
274 | ||
53e430a3 | 275 | Float_t dedxcm=0.; |
1963b290 | 276 | if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep(); |
277 | else dedxcm=0; | |
cde6a23d | 278 | lightYield=lightYield/(1.+birkC1Mod*dedxcm+fBirkC2*dedxcm*dedxcm); |
1963b290 | 279 | } |
280 | ||
281 | // use sampling fraction to get original energy --HG | |
282 | // xyzte[4] = lightYield * fGeometry->GetSampling(); | |
283 | xyzte[4] = lightYield; // 15-dec-04 | |
284 | ||
285 | if (gDebug == -2) | |
286 | printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n", | |
287 | supModuleNumber,moduleNumber,yNumber,xNumber,absid, xyzte[4]); | |
288 | ||
289 | AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xyzte, pmom); | |
290 | } // there is deposited energy | |
291 | } | |
292 | } |